Human Physiology, 3rd Edition — EXAM PREP | Page 1
,Table of Contents
Chapter 1 — An Introduction to Physiology ...................................................................................3
Chapter 2 — Chemical Composition of the Body ........................................................................15
Chapter 3 — Cells ........................................................................................................................27
Chapter 4 — Metabolism ..............................................................................................................39
Chapter 5 — Transport Across the Plasma Membrane ...............................................................51
Chapter 6 — Cell Signaling ..........................................................................................................64
Chapter 7 — The Nervous System and Neuronal Excitability .....................................................78
Chapter 8 — The Central Nervous System..................................................................................91
Chapter 9 — Sensory Systems ..................................................................................................104
Chapter 10 — Autonomic and Somatic Nervous Systems ........................................................117
Chapter 11 — Muscle .................................................................................................................130
Chapter 12 — Control of Body Movement .................................................................................143
Chapter 13 — The Endocrine System........................................................................................156
Chapter 14 — The Cardiovascular System: The Heart .............................................................170
Chapter 15 — The Cardiovascular System: Blood Vessels and Hemodynamics .....................183
Chapter 16 — The Cardiovascular System: The Blood .............................................................196
Chapter 17 — The Immune System ...........................................................................................209
Chapter 18 — The Respiratory System .....................................................................................223
Chapter 19 — The Urinary System ............................................................................................236
Chapter 20 — Fluid, Electrolyte, and Acid–Base Homeostasis .................................................250
Chapter 21 — The Digestive System .........................................................................................264
Chapter 22 — Metabolic Adaptations, Energy Balance, and Temperature Regulation ............278
Chapter 23 — The Reproductive Systems.................................................................................292
Human Physiology, 3rd Edition — EXAM PREP | Page 2
,Chapter 1 — An Introduction to Physiology
1. During strenuous aerobic exercise, skeletal muscle contractions generate excess metabolic heat that
elevates internal body temperature. How does the body restore temperature homeostasis?
A. Decreasing blood delivery to superficial cutaneous vessels
B. Stimulating rhythmic skeletal muscle shivering responses
C. Promoting cutaneous vasodilation and sweat secretion
D. Inactivating hypothalamic thermal regulatory control hubs
Answer: C
Rationale: The thermoregulatory control center in the hypothalamus detects the temperature increase and
activates sympathetic cholinergic output. Cutaneous vasodilation increases radiant heat dissipation through
dermal capillaries while sweat evaporation removes heat from the body surface. These negative feedback
responses counteract the initial disruption to restore normal core body temperature.
Keywords: thermoregulation, sweating, negative feedback, exercise physiology
2. A 45-year-old construction worker collapses on a hot summer afternoon exhibiting severe dehydration, rapid
pulse, and hot dry skin. Emergency clinicians observe that core body temperature has surged to 41°C while
sweating has completely ceased. Laboratory results reveal severe intracellular water deficit and circulatory
hypovolemia that prevent dermal blood flow. What physiological mechanism explains this dangerous
progression?
A. Suppression of antidiuretic release promoting rapid fluid depletion
B. Activation of peripheral vasodilation decreasing vascular perfusion
C. Conversion of arterial baroreceptor signals into thermal outputs
D. Failure of negative feedback systems leading to acute heat stroke
Answer: D
Rationale: Extreme hyperthermia and severe fluid loss impair the hypothalamic control center and exhaust
physiological effectors, causing thermoregulatory homeostatic compensation to collapse. When cooling
effectors fail, unmitigated metabolic heat production drives internal body temperature progressively higher in a
Human Physiology, 3rd Edition — EXAM PREP | Page 3
,vicious cycle. This homeostatic failure manifests clinically as heat stroke and requires aggressive external
cooling.
Keywords: heat stroke, homeostatic failure, dehydration, thermoregulation
3. Physiology focuses on which core scientific subject?
A. Dynamic physical and chemical functions of living systems
B. Static macroscopic structural architecture of vital body organs
C. Evolutionary adaptations preserved across ancient fossil records
D. Systematic morphological classification of human body tissues
Answer: A
Rationale: Physiology is the scientific study of the integrated functions and dynamic physical and chemical
processes occurring within living organisms. It investigates how body structures operate at cellular, organ, and
systemic levels to sustain life. Understanding these functional mechanisms forms the foundation for modern
medicine and human biology.
Keywords: physiology, function, organismal biology
4. A sudden postural shift from supine to standing causes systemic arterial blood pressure to fall acutely.
Which sequence describes the homeostatic reflex that restores normal arterial pressure?
A. Arterial baroreceptors signal the brainstem to raise cardiac output
B. Somatic muscle receptors signal the spinal cord to dilate arterioles
C. Cerebral osmoreceptors instruct adrenal tissue to reduce total drive
D. Renal chemoreceptors instruct venous valves to lower diastolic output
Answer: A
Rationale: Arterial baroreceptors detect reduced vascular stretch and transmit afferent neural signals to the
cardiovascular control center in the brainstem. The control center increases sympathetic efferent stimulation to
the heart and peripheral resistance arterioles. Elevating heart rate, myocardial contractility, and
vasoconstriction rapidly restores mean arterial blood pressure toward its normal homeostatic set point.
Keywords: baroreceptors, blood pressure, negative feedback, control center
Human Physiology, 3rd Edition — EXAM PREP | Page 4
,5. Which biological structural level represents two or more distinct tissues joined to execute specific tasks?
A. Cellular structural compartment
B. Macromolecular complex entity
C. Discrete anatomical body organ
D. Integrated total organ system
Answer: C
Rationale: An organ is an anatomically distinct structure composed of two or more different primary tissue
types organized together to perform specific functions. For example, the stomach contains epithelial,
connective, muscular, and nervous tissues working collaboratively. Organs subsequently integrate into organ
systems to execute complex physiological duties.
Keywords: structural hierarchy, organ level, tissue integration
6. What term designates the structural development of an unspecialized stem cell into a specialized cell?
A. Cellular hypertrophic tissue enlargement
B. Systemic homeostatic organ assimilation
C. Cellular differentiation of stem cells
D. Anabolic metabolic macromolecule synthesis
Answer: C
Rationale: Differentiation is the fundamental life process wherein unspecialized precursor cells transition into
structurally and functionally specialized mature cells. During this process, selective gene expression produces
distinct cellular phenotypes such as erythrocytes or motor neurons. This developmental mechanism enables
functional division of labor within multicellular organisms.
Keywords: differentiation, stem cells, basic life processes
7. Metabolism encompasses which total set of bodily processes?
A. All chemical reactions occurring inside an organism
B. Exclusively catabolic energy-releasing steps in mitochondria
C. Mechanisms eliminating non-digestible items via defecation
D. Electrical impulses propagated continuously along synapses
Human Physiology, 3rd Edition — EXAM PREP | Page 5
,Answer: A
Rationale: Metabolism represents the sum of all biochemical reactions taking place throughout an organism. It
encompasses catabolic pathways that break down complex molecules to generate usable chemical energy
alongside anabolic pathways that synthesize essential macromolecules from simpler precursors. These
ongoing chemical transformations support cellular growth, repair, and ongoing vital processes.
Keywords: metabolism, anabolism, catabolism, biochemical reactions
8. Physiologists investigate the core body temperature response to varying environmental temperatures in
healthy human subjects. Group A is exposed to 10°C, Group B to 22°C, and Group C to 35°C for four
continuous hours under identical metabolic conditions. Recorded data demonstrate that internal core
temperatures across all three experimental cohorts remain stable between 36.8°C and 37.2°C. What empirical
conclusion does this experimental data support?
A. Enzymes denature rapidly as ambient thermal gradients shift upwards across tissues
B. Internal core body temperature fluctuates passively with shifting external variables
C. Homeostatic mechanisms actively maintain internal core body temperature constancy
D. External thermal swings permanently disrupt central hypothalamic set point networks
Answer: C
Rationale: The recorded data illustrate that internal temperature is maintained within a remarkably narrow
physiological range despite substantial shifts in external ambient conditions. This demonstrates the efficiency
of physiological homeostatic regulatory systems that modulate vascular tone, sweating, or metabolic shivering.
Human organ systems prioritize maintaining internal constancy against fluctuating outside environments.
Keywords: scientific method, experimental data, homeostasis, core temperature
9. During human labor, uterine contractions push the fetus into the cervix, causing cervical stretching. How
does the endocrine system respond to ensure progressive childbirth?
A. Inhibiting hypothalamic neurosecretory cells to diminish uterine contractions
B. Releasing oxytocin from the pituitary to enhance uterine contractions
C. Activating adrenal cortisol synthesis to inhibit ongoing maternal labor progress
D. Stimulating parathyroid hormones to lower calcium influx into muscular targets
Answer: B
Human Physiology, 3rd Edition — EXAM PREP | Page 6
,Rationale: Cervical stretch receptors send sensory action potentials to the hypothalamus, triggering oxytocin
secretion from the posterior pituitary gland. Circulating oxytocin stimulates uterine smooth muscle to contract
with greater intensity and frequency, pushing the fetus further into the birth canal. This self-amplifying positive
feedback loop continues until the fetus is delivered and cervical stretching ceases.
Keywords: oxytocin, positive feedback, childbirth, uterine contractions
10. A patient with an acute systemic bacterial infection develops chills and shivering while core temperature
rises to 39.5°C. What physiological alteration underlies this clinical state?
A. Paralysis of cutaneous peripheral arteriolar vascular smooth muscle tissues
B. Exhaustion of metabolic glycogen storage within hepatic parenchyma cell stores
C. Uncontrolled passive hyperthermia caused by systemic enzymatic denaturation
D. Pyrogens elevate the hypothalamic thermoregulatory set point to high levels
Answer: D
Rationale: Circulating pyrogens induce local prostaglandin synthesis in the hypothalamus, which resets the
thermoregulatory set point to a higher temperature. Because the existing core temperature is temporarily below
this newly elevated set point, the body initiates shivering and peripheral vasoconstriction to generate and
conserve heat. Once core temperature reaches the higher set point, shivering stops and temperature stabilizes
at the febrile level.
Keywords: fever, hypothalamic set point, pyrogens, thermoregulation
11. A biomedical research team evaluates pulmonary gas exchange efficiency across different synthetic
membrane models. They discover that a tissue membrane characterized by extremely thin, single-layered
squamous epithelium maximizes passive oxygen diffusion into adjacent blood vessels. In contrast, thicker
multi-layered cuboidal membranes drastically reduce gas diffusion rates under identical partial pressures.
Which overarching biological theme explains these experimental findings?
A. Active cellular transport pathways dominate the net flow of respiratory gases
B. Homeostatic balance relies exclusively upon positive feedback loop cascades
C. Morphological structure directly dictates and facilitates physical function
D. Metabolic cellular differentiation transforms squamous cells to cuboidal forms
Answer: C
Human Physiology, 3rd Edition — EXAM PREP | Page 7
,Rationale: The theme of structure-function relationship establishes that the physical morphology and
anatomical architecture of a biological structure directly determine its functional capacities. The minuscule
diffusion barrier of simple squamous epithelium facilitates rapid gas transport across respiratory membranes in
compliance with Fick's law of diffusion. Thicker tissue barriers impede this function by increasing the physical
distance molecules must travel.
Keywords: structure-function, gas exchange, epithelium, key themes
12. Following a deep laceration to the forearm, vascular endothelial damage exposes subendothelial collagen
fibers. How does the vascular system rapidly seal the ruptured blood vessel?
A. Halting hepatic synthesis of circulating prothrombin and related clotting factors
B. Inactivating thrombin to block local insoluble fibrin net polymerization cascades
C. Secreting prostacyclin from damaged vascular endothelium to disperse active cells
D. Adhering platelets release chemical signals that recruit further platelets
Answer: D
Rationale: Platelets adhere to exposed collagen at the injury site and become activated, releasing chemical
mediators such as ADP and thromboxane A2. These signaling molecules recruit and activate additional
platelets in a localized positive feedback cascade that rapidly forms a stable platelet plug. The clotting cascade
amplifies thrombin generation, culminating in fibrin mesh deposition to secure hemostasis until the vessel wall
is sealed.
Keywords: blood clotting, hemostasis, platelet plug, positive feedback
13. In a biological feedback loop, which specific component monitors a controlled variable?
A. Efferent motor conductor pathway
B. Responsive peripheral effector organ
C. Dedicated sensory receptor unit
D. Integrative neuronal control hub
Answer: C
Rationale: A sensory receptor is the specialized biological component that continuously monitors fluctuations
in a controlled variable such as blood glucose, arterial pressure, or body temperature. When a stimulus
induces a change, the receptor converts this physical or chemical signal into afferent inputs directed toward the
Human Physiology, 3rd Edition — EXAM PREP | Page 8
,Table of Contents
Chapter 1 — An Introduction to Physiology ...................................................................................3
Chapter 2 — Chemical Composition of the Body ........................................................................15
Chapter 3 — Cells ........................................................................................................................27
Chapter 4 — Metabolism ..............................................................................................................39
Chapter 5 — Transport Across the Plasma Membrane ...............................................................51
Chapter 6 — Cell Signaling ..........................................................................................................64
Chapter 7 — The Nervous System and Neuronal Excitability .....................................................78
Chapter 8 — The Central Nervous System..................................................................................91
Chapter 9 — Sensory Systems ..................................................................................................104
Chapter 10 — Autonomic and Somatic Nervous Systems ........................................................117
Chapter 11 — Muscle .................................................................................................................130
Chapter 12 — Control of Body Movement .................................................................................143
Chapter 13 — The Endocrine System........................................................................................156
Chapter 14 — The Cardiovascular System: The Heart .............................................................170
Chapter 15 — The Cardiovascular System: Blood Vessels and Hemodynamics .....................183
Chapter 16 — The Cardiovascular System: The Blood .............................................................196
Chapter 17 — The Immune System ...........................................................................................209
Chapter 18 — The Respiratory System .....................................................................................223
Chapter 19 — The Urinary System ............................................................................................236
Chapter 20 — Fluid, Electrolyte, and Acid–Base Homeostasis .................................................250
Chapter 21 — The Digestive System .........................................................................................264
Chapter 22 — Metabolic Adaptations, Energy Balance, and Temperature Regulation ............278
Chapter 23 — The Reproductive Systems.................................................................................292
Human Physiology, 3rd Edition — EXAM PREP | Page 2
,Chapter 1 — An Introduction to Physiology
1. During strenuous aerobic exercise, skeletal muscle contractions generate excess metabolic heat that
elevates internal body temperature. How does the body restore temperature homeostasis?
A. Decreasing blood delivery to superficial cutaneous vessels
B. Stimulating rhythmic skeletal muscle shivering responses
C. Promoting cutaneous vasodilation and sweat secretion
D. Inactivating hypothalamic thermal regulatory control hubs
Answer: C
Rationale: The thermoregulatory control center in the hypothalamus detects the temperature increase and
activates sympathetic cholinergic output. Cutaneous vasodilation increases radiant heat dissipation through
dermal capillaries while sweat evaporation removes heat from the body surface. These negative feedback
responses counteract the initial disruption to restore normal core body temperature.
Keywords: thermoregulation, sweating, negative feedback, exercise physiology
2. A 45-year-old construction worker collapses on a hot summer afternoon exhibiting severe dehydration, rapid
pulse, and hot dry skin. Emergency clinicians observe that core body temperature has surged to 41°C while
sweating has completely ceased. Laboratory results reveal severe intracellular water deficit and circulatory
hypovolemia that prevent dermal blood flow. What physiological mechanism explains this dangerous
progression?
A. Suppression of antidiuretic release promoting rapid fluid depletion
B. Activation of peripheral vasodilation decreasing vascular perfusion
C. Conversion of arterial baroreceptor signals into thermal outputs
D. Failure of negative feedback systems leading to acute heat stroke
Answer: D
Rationale: Extreme hyperthermia and severe fluid loss impair the hypothalamic control center and exhaust
physiological effectors, causing thermoregulatory homeostatic compensation to collapse. When cooling
effectors fail, unmitigated metabolic heat production drives internal body temperature progressively higher in a
Human Physiology, 3rd Edition — EXAM PREP | Page 3
,vicious cycle. This homeostatic failure manifests clinically as heat stroke and requires aggressive external
cooling.
Keywords: heat stroke, homeostatic failure, dehydration, thermoregulation
3. Physiology focuses on which core scientific subject?
A. Dynamic physical and chemical functions of living systems
B. Static macroscopic structural architecture of vital body organs
C. Evolutionary adaptations preserved across ancient fossil records
D. Systematic morphological classification of human body tissues
Answer: A
Rationale: Physiology is the scientific study of the integrated functions and dynamic physical and chemical
processes occurring within living organisms. It investigates how body structures operate at cellular, organ, and
systemic levels to sustain life. Understanding these functional mechanisms forms the foundation for modern
medicine and human biology.
Keywords: physiology, function, organismal biology
4. A sudden postural shift from supine to standing causes systemic arterial blood pressure to fall acutely.
Which sequence describes the homeostatic reflex that restores normal arterial pressure?
A. Arterial baroreceptors signal the brainstem to raise cardiac output
B. Somatic muscle receptors signal the spinal cord to dilate arterioles
C. Cerebral osmoreceptors instruct adrenal tissue to reduce total drive
D. Renal chemoreceptors instruct venous valves to lower diastolic output
Answer: A
Rationale: Arterial baroreceptors detect reduced vascular stretch and transmit afferent neural signals to the
cardiovascular control center in the brainstem. The control center increases sympathetic efferent stimulation to
the heart and peripheral resistance arterioles. Elevating heart rate, myocardial contractility, and
vasoconstriction rapidly restores mean arterial blood pressure toward its normal homeostatic set point.
Keywords: baroreceptors, blood pressure, negative feedback, control center
Human Physiology, 3rd Edition — EXAM PREP | Page 4
,5. Which biological structural level represents two or more distinct tissues joined to execute specific tasks?
A. Cellular structural compartment
B. Macromolecular complex entity
C. Discrete anatomical body organ
D. Integrated total organ system
Answer: C
Rationale: An organ is an anatomically distinct structure composed of two or more different primary tissue
types organized together to perform specific functions. For example, the stomach contains epithelial,
connective, muscular, and nervous tissues working collaboratively. Organs subsequently integrate into organ
systems to execute complex physiological duties.
Keywords: structural hierarchy, organ level, tissue integration
6. What term designates the structural development of an unspecialized stem cell into a specialized cell?
A. Cellular hypertrophic tissue enlargement
B. Systemic homeostatic organ assimilation
C. Cellular differentiation of stem cells
D. Anabolic metabolic macromolecule synthesis
Answer: C
Rationale: Differentiation is the fundamental life process wherein unspecialized precursor cells transition into
structurally and functionally specialized mature cells. During this process, selective gene expression produces
distinct cellular phenotypes such as erythrocytes or motor neurons. This developmental mechanism enables
functional division of labor within multicellular organisms.
Keywords: differentiation, stem cells, basic life processes
7. Metabolism encompasses which total set of bodily processes?
A. All chemical reactions occurring inside an organism
B. Exclusively catabolic energy-releasing steps in mitochondria
C. Mechanisms eliminating non-digestible items via defecation
D. Electrical impulses propagated continuously along synapses
Human Physiology, 3rd Edition — EXAM PREP | Page 5
,Answer: A
Rationale: Metabolism represents the sum of all biochemical reactions taking place throughout an organism. It
encompasses catabolic pathways that break down complex molecules to generate usable chemical energy
alongside anabolic pathways that synthesize essential macromolecules from simpler precursors. These
ongoing chemical transformations support cellular growth, repair, and ongoing vital processes.
Keywords: metabolism, anabolism, catabolism, biochemical reactions
8. Physiologists investigate the core body temperature response to varying environmental temperatures in
healthy human subjects. Group A is exposed to 10°C, Group B to 22°C, and Group C to 35°C for four
continuous hours under identical metabolic conditions. Recorded data demonstrate that internal core
temperatures across all three experimental cohorts remain stable between 36.8°C and 37.2°C. What empirical
conclusion does this experimental data support?
A. Enzymes denature rapidly as ambient thermal gradients shift upwards across tissues
B. Internal core body temperature fluctuates passively with shifting external variables
C. Homeostatic mechanisms actively maintain internal core body temperature constancy
D. External thermal swings permanently disrupt central hypothalamic set point networks
Answer: C
Rationale: The recorded data illustrate that internal temperature is maintained within a remarkably narrow
physiological range despite substantial shifts in external ambient conditions. This demonstrates the efficiency
of physiological homeostatic regulatory systems that modulate vascular tone, sweating, or metabolic shivering.
Human organ systems prioritize maintaining internal constancy against fluctuating outside environments.
Keywords: scientific method, experimental data, homeostasis, core temperature
9. During human labor, uterine contractions push the fetus into the cervix, causing cervical stretching. How
does the endocrine system respond to ensure progressive childbirth?
A. Inhibiting hypothalamic neurosecretory cells to diminish uterine contractions
B. Releasing oxytocin from the pituitary to enhance uterine contractions
C. Activating adrenal cortisol synthesis to inhibit ongoing maternal labor progress
D. Stimulating parathyroid hormones to lower calcium influx into muscular targets
Answer: B
Human Physiology, 3rd Edition — EXAM PREP | Page 6
,Rationale: Cervical stretch receptors send sensory action potentials to the hypothalamus, triggering oxytocin
secretion from the posterior pituitary gland. Circulating oxytocin stimulates uterine smooth muscle to contract
with greater intensity and frequency, pushing the fetus further into the birth canal. This self-amplifying positive
feedback loop continues until the fetus is delivered and cervical stretching ceases.
Keywords: oxytocin, positive feedback, childbirth, uterine contractions
10. A patient with an acute systemic bacterial infection develops chills and shivering while core temperature
rises to 39.5°C. What physiological alteration underlies this clinical state?
A. Paralysis of cutaneous peripheral arteriolar vascular smooth muscle tissues
B. Exhaustion of metabolic glycogen storage within hepatic parenchyma cell stores
C. Uncontrolled passive hyperthermia caused by systemic enzymatic denaturation
D. Pyrogens elevate the hypothalamic thermoregulatory set point to high levels
Answer: D
Rationale: Circulating pyrogens induce local prostaglandin synthesis in the hypothalamus, which resets the
thermoregulatory set point to a higher temperature. Because the existing core temperature is temporarily below
this newly elevated set point, the body initiates shivering and peripheral vasoconstriction to generate and
conserve heat. Once core temperature reaches the higher set point, shivering stops and temperature stabilizes
at the febrile level.
Keywords: fever, hypothalamic set point, pyrogens, thermoregulation
11. A biomedical research team evaluates pulmonary gas exchange efficiency across different synthetic
membrane models. They discover that a tissue membrane characterized by extremely thin, single-layered
squamous epithelium maximizes passive oxygen diffusion into adjacent blood vessels. In contrast, thicker
multi-layered cuboidal membranes drastically reduce gas diffusion rates under identical partial pressures.
Which overarching biological theme explains these experimental findings?
A. Active cellular transport pathways dominate the net flow of respiratory gases
B. Homeostatic balance relies exclusively upon positive feedback loop cascades
C. Morphological structure directly dictates and facilitates physical function
D. Metabolic cellular differentiation transforms squamous cells to cuboidal forms
Answer: C
Human Physiology, 3rd Edition — EXAM PREP | Page 7
,Rationale: The theme of structure-function relationship establishes that the physical morphology and
anatomical architecture of a biological structure directly determine its functional capacities. The minuscule
diffusion barrier of simple squamous epithelium facilitates rapid gas transport across respiratory membranes in
compliance with Fick's law of diffusion. Thicker tissue barriers impede this function by increasing the physical
distance molecules must travel.
Keywords: structure-function, gas exchange, epithelium, key themes
12. Following a deep laceration to the forearm, vascular endothelial damage exposes subendothelial collagen
fibers. How does the vascular system rapidly seal the ruptured blood vessel?
A. Halting hepatic synthesis of circulating prothrombin and related clotting factors
B. Inactivating thrombin to block local insoluble fibrin net polymerization cascades
C. Secreting prostacyclin from damaged vascular endothelium to disperse active cells
D. Adhering platelets release chemical signals that recruit further platelets
Answer: D
Rationale: Platelets adhere to exposed collagen at the injury site and become activated, releasing chemical
mediators such as ADP and thromboxane A2. These signaling molecules recruit and activate additional
platelets in a localized positive feedback cascade that rapidly forms a stable platelet plug. The clotting cascade
amplifies thrombin generation, culminating in fibrin mesh deposition to secure hemostasis until the vessel wall
is sealed.
Keywords: blood clotting, hemostasis, platelet plug, positive feedback
13. In a biological feedback loop, which specific component monitors a controlled variable?
A. Efferent motor conductor pathway
B. Responsive peripheral effector organ
C. Dedicated sensory receptor unit
D. Integrative neuronal control hub
Answer: C
Rationale: A sensory receptor is the specialized biological component that continuously monitors fluctuations
in a controlled variable such as blood glucose, arterial pressure, or body temperature. When a stimulus
induces a change, the receptor converts this physical or chemical signal into afferent inputs directed toward the
Human Physiology, 3rd Edition — EXAM PREP | Page 8
