BIOS 251
ANATOMY & PHYSIOLOGY I WITH LAB
Week 1 & 2 Exam Review
100 Verified Questions with Correct Answers
Latest 2026/2027 Edition | 100% Correct | A+ Graded
Section Questions Content Area
1 Q1 - Q25 Introduction to Anatomy and Physiology
2 Q26 - Q45 Basic Chemistry and Biochemistry
3 Q46 - Q70 Cell Structure and Function
4 Q71 - Q90 Tissues
5 Q91 - Q100 Laboratory Application & Clinical Scenarios
, BIOS 251 Anatomy & Physiology I | Week 1 & 2 Exam Review | Chamberlain University 2026/2027
Section 1: Introduction to Anatomy and Physiology
Levels of Organization, Anatomical Terminology, Body Planes, Cavities, Regions, Directional Terms,
Homeostasis, Feedback Loops, Medical Imaging
Q1. In the standard anatomical position, how is the body oriented?
A. Standing erect, face forward, arms at the sides with palms facing posteriorly, feet parallel
B. Standing erect, face forward, arms at the sides with palms facing anteriorly, feet
parallel [CORRECT]
C. Lying supine with arms crossed over the chest and palms facing the body
D. Standing erect, face forward, arms raised above the head with palms facing laterally, feet slightly
apart
Correct Answer: B
Rationale: The standard anatomical position is defined as standing erect, facing forward, with arms at the sides
and palms facing anteriorly (forward), and feet parallel and close together. This position provides a universal
reference point for all directional terms and body regions.
Q2. A researcher is measuring how heart rate changes in response to increased
blood carbon dioxide levels. Which branch of science is this researcher primarily
practicing?
A. Anatomy, because it studies the structure of the heart
B. Physiology, because it studies how a structure functions under changing conditions
[CORRECT]
C. Histology, because it examines cardiac tissue at the microscopic level
D. Embryology, because it traces the developmental origin of cardiac tissue
Correct Answer: B
Rationale: Physiology is the study of how body structures function. Measuring heart rate changes in response to a
chemical stimulus (CO₂) investigates the dynamic function of the cardiovascular system, which falls under
physiology. Anatomy, by contrast, focuses on structure.
Q3. A patient is diagnosed with a disorder affecting the lining of the stomach that
impairs acid secretion. At which level of organization is this disorder primarily
manifesting?
A. Chemical level, because acid secretion involves molecular interactions
B. Cellular level, because individual parietal cells are malfunctioning
C. Tissue level, because the gastric mucosa (epithelial tissue) is affected [CORRECT]
D. Organ level, because the stomach as a whole is failing to function properly
Correct Answer: C
Rationale: The gastric mucosa is a layer of epithelial tissue lining the stomach. A disorder affecting this lining that
impairs acid secretion is primarily at the tissue level. While it involves cells and chemicals, the pathological change
is described in terms of tissue (the mucosal lining). The organ level would refer to the stomach as a whole, which is
not the primary focus here.
Q4. A physiology professor explains that the alveoli of the lungs are composed of
extremely thin, simple squamous epithelium and are surrounded by a dense
network of capillaries. Which principle best explains WHY alveoli are structured this
way?
A. The principle of regional anatomy, which relates structure to specific body regions
Page 2
, B. The principle of complementarity of structure and function, which states that function
reflects structure [CORRECT]
C. The principle of surface anatomy, which relates external features to internal structures
D. The principle of systemic physiology, which studies how organ systems work together
Correct Answer: B
Rationale: The principle of complementarity of structure and function states that what a structure can do depends
on its specific form. The thin walls of alveoli and their close association with capillaries facilitate efficient gas
exchange—structure perfectly complements function.
Q5. Which of the following studies would be classified as microscopic
(microanatomy) rather than gross anatomy?
A. Observing the external muscles of the thigh during a dissection
B. Examining the arrangement of the heart's four chambers using a cadaver
C. Viewing the layers of the epidermis under a light microscope [CORRECT]
D. Palpating the surface landmarks of the skull on a living person
Correct Answer: C
Rationale: Microscopic anatomy (microanatomy) involves structures too small to be seen with the naked eye and
requires a microscope. Examining epidermal layers under a light microscope is microanatomy. The other options
involve structures visible without magnification, which is the domain of gross (macroscopic) anatomy.
Q6. During a physical exam, a physician notes a bruise 'superior to the umbilicus
and inferior to the xiphoid process.' In which region is the bruise located?
A. Hypogastric region
B. Umbilical region
C. Epigastric region [CORRECT]
D. Hypochondriac region
Correct Answer: C
Rationale: Superior means closer to the head (above), and inferior means closer to the feet (below). The area
superior to the umbilicus and inferior to the xiphoid process is the epigastric region, located in the upper-middle
abdomen.
Q7. A patient presents with pain on the posterior surface of the lower leg. Which of
the following describes the location of this pain?
A. The front of the lower leg (shin area)
B. The back of the lower leg (calf area) [CORRECT]
C. The inner side of the lower leg
D. The outer side of the lower leg
Correct Answer: B
Rationale: Posterior (dorsal) means toward the back of the body. The posterior surface of the lower leg is the back
of the calf. Anterior (ventral) would refer to the front (shin area). Medial and lateral refer to the inner and outer
sides, respectively.
Q8. A surgeon makes an incision in the upper arm, 3 cm distal to the acromion
process of the scapula. Where is this incision relative to the shoulder joint?
A. Closer to the shoulder joint than the acromion
B. Farther from the shoulder joint (point of attachment) than the acromion [CORRECT]
C. On the same plane as the shoulder joint
D. On the medial side of the upper arm near the axilla
Correct Answer: B
ANATOMY & PHYSIOLOGY I WITH LAB
Week 1 & 2 Exam Review
100 Verified Questions with Correct Answers
Latest 2026/2027 Edition | 100% Correct | A+ Graded
Section Questions Content Area
1 Q1 - Q25 Introduction to Anatomy and Physiology
2 Q26 - Q45 Basic Chemistry and Biochemistry
3 Q46 - Q70 Cell Structure and Function
4 Q71 - Q90 Tissues
5 Q91 - Q100 Laboratory Application & Clinical Scenarios
, BIOS 251 Anatomy & Physiology I | Week 1 & 2 Exam Review | Chamberlain University 2026/2027
Section 1: Introduction to Anatomy and Physiology
Levels of Organization, Anatomical Terminology, Body Planes, Cavities, Regions, Directional Terms,
Homeostasis, Feedback Loops, Medical Imaging
Q1. In the standard anatomical position, how is the body oriented?
A. Standing erect, face forward, arms at the sides with palms facing posteriorly, feet parallel
B. Standing erect, face forward, arms at the sides with palms facing anteriorly, feet
parallel [CORRECT]
C. Lying supine with arms crossed over the chest and palms facing the body
D. Standing erect, face forward, arms raised above the head with palms facing laterally, feet slightly
apart
Correct Answer: B
Rationale: The standard anatomical position is defined as standing erect, facing forward, with arms at the sides
and palms facing anteriorly (forward), and feet parallel and close together. This position provides a universal
reference point for all directional terms and body regions.
Q2. A researcher is measuring how heart rate changes in response to increased
blood carbon dioxide levels. Which branch of science is this researcher primarily
practicing?
A. Anatomy, because it studies the structure of the heart
B. Physiology, because it studies how a structure functions under changing conditions
[CORRECT]
C. Histology, because it examines cardiac tissue at the microscopic level
D. Embryology, because it traces the developmental origin of cardiac tissue
Correct Answer: B
Rationale: Physiology is the study of how body structures function. Measuring heart rate changes in response to a
chemical stimulus (CO₂) investigates the dynamic function of the cardiovascular system, which falls under
physiology. Anatomy, by contrast, focuses on structure.
Q3. A patient is diagnosed with a disorder affecting the lining of the stomach that
impairs acid secretion. At which level of organization is this disorder primarily
manifesting?
A. Chemical level, because acid secretion involves molecular interactions
B. Cellular level, because individual parietal cells are malfunctioning
C. Tissue level, because the gastric mucosa (epithelial tissue) is affected [CORRECT]
D. Organ level, because the stomach as a whole is failing to function properly
Correct Answer: C
Rationale: The gastric mucosa is a layer of epithelial tissue lining the stomach. A disorder affecting this lining that
impairs acid secretion is primarily at the tissue level. While it involves cells and chemicals, the pathological change
is described in terms of tissue (the mucosal lining). The organ level would refer to the stomach as a whole, which is
not the primary focus here.
Q4. A physiology professor explains that the alveoli of the lungs are composed of
extremely thin, simple squamous epithelium and are surrounded by a dense
network of capillaries. Which principle best explains WHY alveoli are structured this
way?
A. The principle of regional anatomy, which relates structure to specific body regions
Page 2
, B. The principle of complementarity of structure and function, which states that function
reflects structure [CORRECT]
C. The principle of surface anatomy, which relates external features to internal structures
D. The principle of systemic physiology, which studies how organ systems work together
Correct Answer: B
Rationale: The principle of complementarity of structure and function states that what a structure can do depends
on its specific form. The thin walls of alveoli and their close association with capillaries facilitate efficient gas
exchange—structure perfectly complements function.
Q5. Which of the following studies would be classified as microscopic
(microanatomy) rather than gross anatomy?
A. Observing the external muscles of the thigh during a dissection
B. Examining the arrangement of the heart's four chambers using a cadaver
C. Viewing the layers of the epidermis under a light microscope [CORRECT]
D. Palpating the surface landmarks of the skull on a living person
Correct Answer: C
Rationale: Microscopic anatomy (microanatomy) involves structures too small to be seen with the naked eye and
requires a microscope. Examining epidermal layers under a light microscope is microanatomy. The other options
involve structures visible without magnification, which is the domain of gross (macroscopic) anatomy.
Q6. During a physical exam, a physician notes a bruise 'superior to the umbilicus
and inferior to the xiphoid process.' In which region is the bruise located?
A. Hypogastric region
B. Umbilical region
C. Epigastric region [CORRECT]
D. Hypochondriac region
Correct Answer: C
Rationale: Superior means closer to the head (above), and inferior means closer to the feet (below). The area
superior to the umbilicus and inferior to the xiphoid process is the epigastric region, located in the upper-middle
abdomen.
Q7. A patient presents with pain on the posterior surface of the lower leg. Which of
the following describes the location of this pain?
A. The front of the lower leg (shin area)
B. The back of the lower leg (calf area) [CORRECT]
C. The inner side of the lower leg
D. The outer side of the lower leg
Correct Answer: B
Rationale: Posterior (dorsal) means toward the back of the body. The posterior surface of the lower leg is the back
of the calf. Anterior (ventral) would refer to the front (shin area). Medial and lateral refer to the inner and outer
sides, respectively.
Q8. A surgeon makes an incision in the upper arm, 3 cm distal to the acromion
process of the scapula. Where is this incision relative to the shoulder joint?
A. Closer to the shoulder joint than the acromion
B. Farther from the shoulder joint (point of attachment) than the acromion [CORRECT]
C. On the same plane as the shoulder joint
D. On the medial side of the upper arm near the axilla
Correct Answer: B
