Test Bank for Human Physiology – Stuart Fox
Release | Verified Test Bank for 2026 | All
Chapters with MCQs and Answers|
9781265311179|
1) The study of disease processes aids in the understanding of
normal functions.
True
False
, Correct Answer: True
Rationale: The study of how disease or injury alters physiological processes is called
pathophysiology. Looking at systems when they fail directly helps scientists map out
how the components are supposed to work together under normal conditions.
2) Phase iv clinical drug trials involve testing a drug only on the
specific human population who have the condition that the drug
is intended to treat.
True
False
Correct Answer: False
Rationale: Phase IV trials take place after the FDA approves a drug for consumer use.
They are designed for ongoing, post-marketing surveillance to find long-term patterns
and rare side effects. Testing exclusively on a small population with the targeted
condition occurs earlier in Phase II and Phase III trials.
3) Negative feedback results in a response that opposes the
original deviation from normal.
True
False
Correct Answer: True
Rationale: A negative feedback loop is the body’s primary tool for maintaining
homeostatic baselines. It works by generating an action that goes in the opposite
direction of the incoming stimulus to bring parameters back down or up to their original
healthy setpoint.
4) Blood clotting is an example of positive feedback since the
action of the effector opposes that of the stimulus.
True
False
Correct Answer: False
Rationale: While blood clotting is a classic biological example of a positive feedback
loop, the sentence logic is flawed. Positive feedback mechanisms reinforce or amplify
, the original stimulus until a final goal is reached (in this case, sealing a wounded blood
vessel). They do not oppose it.
5) A patient takes a daily thyroid hormone replacement
medication to maintain normal thyroid hormone levels.
True
False
Correct Answer: True
Rationale: When internal metabolic pathways can no longer maintain homeostatic
control of thyroid concentrations due to conditions like hypothyroidism, taking
exogenous prescription medications works from the outside to artificially stabilize thyroid
counts within normal ranges.
6) Stratified epithelial tissue provides little protection, but
transports substances between the internal and external
environments.
Answer: False
Explanation: Stratified epithelial tissue consists of multiple layers designed primarily for
protection against friction and abrasion (e.g., skin). Simple epithelial tissue (one layer
thick) is what transports and filters substances.
7) Sebaceous glands are responsible for the lubrication of the
skin.
Answer: True
Explanation: Sebaceous glands secrete an oily substance called sebum, which
lubricates and waterproofs both the skin and hair.
8) Enamel, which is harder than bone or dentin, cannot be
regenerated.
Answer: True
Explanation: Tooth enamel is the hardest tissue in the body. It does not contain living
cells, meaning it cannot biologically repair or regenerate once damaged.
, 9) By affecting the diameter of cutaneous blood vessels, motor
nerve fibers in the skin can regulate the rate of blood flow.
Answer: True
Explanation: Autonomic motor nerve fibers control the smooth muscle in cutaneous
(skin) blood vessels. Vasoconstriction narrows the vessels to decrease flow, while
vasodilation widens them to increase flow.
10) Blood plasma and interstitial fluid are separated from each
other; therefore, there is little communication and exchange
between these fluids.
Answer: False
Explanation: While they are separated by capillary walls, blood plasma and interstitial
fluid constantly exchange water, ions, nutrients, and wastes through highly permeable
capillary pores.
11) Physiology ________.
Correct Answer: A) Emphasizes cause-and-effect mechanisms
Explanation: Physiology is fundamentally the study of biological function, focusing
heavily on the specific mechanisms and pathways that drive cause-and-effect
relationships within an organism.
12) The study of how disease or injury alters physiological processes is termed
________.
Correct Answer: C) Pathophysiology
Explanation: Pathophysiology specifically investigates the altered physiological
mechanisms underlying diseases and injuries.
13) The first step in the scientific method involves the formation of a(n) ________.
Correct Answer: D) Hypothesis
Explanation: Out of the available choices, formulating a testable hypothesis based on
an observation is the essential initial step to guide scientific experimentation.
14) Phase ________ clinical trials maximize the number of test participants and
include human participants of both sexes, different ethnic groups, and those who
have health problems besides the one that the drug is designed to treat.
Correct Answer: C) III
Explanation: Phase III clinical trials expand the testing pool significantly to a large,
diverse demographic to catch rare side effects before seeking FDA approval.
15) Phase i clinical trials do not involve ________.
Release | Verified Test Bank for 2026 | All
Chapters with MCQs and Answers|
9781265311179|
1) The study of disease processes aids in the understanding of
normal functions.
True
False
, Correct Answer: True
Rationale: The study of how disease or injury alters physiological processes is called
pathophysiology. Looking at systems when they fail directly helps scientists map out
how the components are supposed to work together under normal conditions.
2) Phase iv clinical drug trials involve testing a drug only on the
specific human population who have the condition that the drug
is intended to treat.
True
False
Correct Answer: False
Rationale: Phase IV trials take place after the FDA approves a drug for consumer use.
They are designed for ongoing, post-marketing surveillance to find long-term patterns
and rare side effects. Testing exclusively on a small population with the targeted
condition occurs earlier in Phase II and Phase III trials.
3) Negative feedback results in a response that opposes the
original deviation from normal.
True
False
Correct Answer: True
Rationale: A negative feedback loop is the body’s primary tool for maintaining
homeostatic baselines. It works by generating an action that goes in the opposite
direction of the incoming stimulus to bring parameters back down or up to their original
healthy setpoint.
4) Blood clotting is an example of positive feedback since the
action of the effector opposes that of the stimulus.
True
False
Correct Answer: False
Rationale: While blood clotting is a classic biological example of a positive feedback
loop, the sentence logic is flawed. Positive feedback mechanisms reinforce or amplify
, the original stimulus until a final goal is reached (in this case, sealing a wounded blood
vessel). They do not oppose it.
5) A patient takes a daily thyroid hormone replacement
medication to maintain normal thyroid hormone levels.
True
False
Correct Answer: True
Rationale: When internal metabolic pathways can no longer maintain homeostatic
control of thyroid concentrations due to conditions like hypothyroidism, taking
exogenous prescription medications works from the outside to artificially stabilize thyroid
counts within normal ranges.
6) Stratified epithelial tissue provides little protection, but
transports substances between the internal and external
environments.
Answer: False
Explanation: Stratified epithelial tissue consists of multiple layers designed primarily for
protection against friction and abrasion (e.g., skin). Simple epithelial tissue (one layer
thick) is what transports and filters substances.
7) Sebaceous glands are responsible for the lubrication of the
skin.
Answer: True
Explanation: Sebaceous glands secrete an oily substance called sebum, which
lubricates and waterproofs both the skin and hair.
8) Enamel, which is harder than bone or dentin, cannot be
regenerated.
Answer: True
Explanation: Tooth enamel is the hardest tissue in the body. It does not contain living
cells, meaning it cannot biologically repair or regenerate once damaged.
, 9) By affecting the diameter of cutaneous blood vessels, motor
nerve fibers in the skin can regulate the rate of blood flow.
Answer: True
Explanation: Autonomic motor nerve fibers control the smooth muscle in cutaneous
(skin) blood vessels. Vasoconstriction narrows the vessels to decrease flow, while
vasodilation widens them to increase flow.
10) Blood plasma and interstitial fluid are separated from each
other; therefore, there is little communication and exchange
between these fluids.
Answer: False
Explanation: While they are separated by capillary walls, blood plasma and interstitial
fluid constantly exchange water, ions, nutrients, and wastes through highly permeable
capillary pores.
11) Physiology ________.
Correct Answer: A) Emphasizes cause-and-effect mechanisms
Explanation: Physiology is fundamentally the study of biological function, focusing
heavily on the specific mechanisms and pathways that drive cause-and-effect
relationships within an organism.
12) The study of how disease or injury alters physiological processes is termed
________.
Correct Answer: C) Pathophysiology
Explanation: Pathophysiology specifically investigates the altered physiological
mechanisms underlying diseases and injuries.
13) The first step in the scientific method involves the formation of a(n) ________.
Correct Answer: D) Hypothesis
Explanation: Out of the available choices, formulating a testable hypothesis based on
an observation is the essential initial step to guide scientific experimentation.
14) Phase ________ clinical trials maximize the number of test participants and
include human participants of both sexes, different ethnic groups, and those who
have health problems besides the one that the drug is designed to treat.
Correct Answer: C) III
Explanation: Phase III clinical trials expand the testing pool significantly to a large,
diverse demographic to catch rare side effects before seeking FDA approval.
15) Phase i clinical trials do not involve ________.
