Anatomy & Physiology (A&P)
ANATOMY AND PHYSIOLOGY | COMPLETE A&P | VERIFIED EXAM
SOLUTIONS - COMPREHENSIVE QUESTIONS AND ANSWERS -
CURRENT VERSION
1. In anatomical position, the body is standing with palms facing which
direction?
A. Downward (inferiorly)
B. Backward (posteriorly)
C. Forward (anteriorly)
D. Toward the body (medially)
CORRECT ANSWER : C. Forward (anteriorly) — Anatomical position is
standing erect, feet forward, arms at sides, palms facing forward.
2. Which directional term means 'toward the midline of the body'?
A. Proximal
B. Lateral
C. Distal
D. Medial
CORRECT ANSWER : D. Medial — Medial describes structures closer to
the body's midline; lateral describes structures farther away.
3. The elbow is ________ to the wrist.
A. Distal
B. Proximal
C. Inferior
D. Superior
CORRECT ANSWER : B. Proximal — Proximal means closer to the point
of attachment/trunk; the elbow is closer to the trunk than the wrist.
4. Which body cavity contains the heart and lungs?
A. Abdominal cavity
B. Thoracic cavity
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, Anatomy & Physiology (A&P)
C. Cranial cavity
D. Pelvic cavity
CORRECT ANSWER : B. Thoracic cavity — The thoracic cavity houses
the heart (in the mediastinum) and the lungs within the pleural cavities.
5. A frontal (coronal) plane divides the body into which sections?
A. Medial and lateral
B. Superior and inferior
C. Left and right
D. Anterior and posterior
CORRECT ANSWER : D. Anterior and posterior — A frontal plane runs
vertically and separates the body into front and back portions.
6. Which serous membrane lines the abdominal cavity and covers abdominal
organs?
A. Pericardium
B. Peritoneum
C. Meninges
D. Pleura
CORRECT ANSWER : B. Peritoneum — The peritoneum is the serous
membrane of the abdominopelvic cavity; the pleura and pericardium serve
the lungs and heart respectively.
7. Homeostasis is best defined as:
A. Constant cell division
B. Growth of new tissue
C. Maintenance of a stable internal environment
D. Breakdown of nutrients for energy
CORRECT ANSWER : C. Maintenance of a stable internal environment
— Homeostasis refers to the body's ability to maintain relatively stable
internal conditions despite external changes.
8. In a negative feedback loop, the response to a stimulus:
A. Has no effect on the stimulus
B. Reverses or reduces the original stimulus
C. Amplifies the original stimulus
D. Only occurs during illness
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, Anatomy & Physiology (A&P)
CORRECT ANSWER : B. Reverses or reduces the original stimulus —
Negative feedback loops counteract the initial change, returning the
variable toward its set point.
9. Which term describes a section that divides the body into upper and lower
portions?
A. Oblique plane
B. Transverse plane
C. Frontal plane
D. Sagittal plane
CORRECT ANSWER : B. Transverse plane — A transverse (horizontal)
plane creates superior and inferior sections.
10. The abdominopelvic region located at the center, below the umbilical
region, is the:
A. Hypogastric region
B. Umbilical region
C. Right iliac region
D. Epigastric region
CORRECT ANSWER : A. Hypogastric region — The hypogastric (pubic)
region sits inferior to the umbilical region in the nine-region abdominal
map.
11. Which type of bond involves the sharing of electron pairs between atoms?
A. Covalent bond
B. Ionic bond
C. Van der Waals interaction
D. Hydrogen bond
CORRECT ANSWER : A. Covalent bond — Covalent bonds form when
atoms share electrons, whereas ionic bonds involve electron transfer.
12. Water's high specific heat helps the body primarily by:
A. Increasing metabolic rate
B. Resisting rapid temperature changes
C. Breaking down large molecules
D. Transporting oxygen
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, Anatomy & Physiology (A&P)
CORRECT ANSWER : B. Resisting rapid temperature changes —
Because water resists temperature fluctuation, it helps stabilize body
temperature.
13. The plasma membrane is best described using which model?
A. Fluid mosaic model
B. Sliding filament model
C. Lock-and-key model
D. Chemiosmotic model
CORRECT ANSWER : A. Fluid mosaic model — The fluid mosaic model
describes the membrane as a fluid phospholipid bilayer with embedded,
mobile proteins.
14. Which organelle is primarily responsible for producing ATP?
A. Ribosome
B. Mitochondria
C. Lysosome
D. Golgi apparatus
CORRECT ANSWER : B. Mitochondria — Mitochondria carry out
aerobic respiration to generate most cellular ATP.
15. Ribosomes function to:
A. Digest worn-out organelles
B. Package and modify proteins for secretion
C. Synthesize proteins
D. Store genetic information
CORRECT ANSWER : C. Synthesize proteins — Ribosomes translate
mRNA into polypeptide chains during protein synthesis.
16. Which process describes movement of water across a selectively permeable
membrane?
A. Active transport
B. Osmosis
C. Diffusion
D. Filtration
CORRECT ANSWER : B. Osmosis — Osmosis is the diffusion of water
specifically, moving toward the area of higher solute concentration.
17. A solution that causes a cell to shrink due to water loss is termed:
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ANATOMY AND PHYSIOLOGY | COMPLETE A&P | VERIFIED EXAM
SOLUTIONS - COMPREHENSIVE QUESTIONS AND ANSWERS -
CURRENT VERSION
1. In anatomical position, the body is standing with palms facing which
direction?
A. Downward (inferiorly)
B. Backward (posteriorly)
C. Forward (anteriorly)
D. Toward the body (medially)
CORRECT ANSWER : C. Forward (anteriorly) — Anatomical position is
standing erect, feet forward, arms at sides, palms facing forward.
2. Which directional term means 'toward the midline of the body'?
A. Proximal
B. Lateral
C. Distal
D. Medial
CORRECT ANSWER : D. Medial — Medial describes structures closer to
the body's midline; lateral describes structures farther away.
3. The elbow is ________ to the wrist.
A. Distal
B. Proximal
C. Inferior
D. Superior
CORRECT ANSWER : B. Proximal — Proximal means closer to the point
of attachment/trunk; the elbow is closer to the trunk than the wrist.
4. Which body cavity contains the heart and lungs?
A. Abdominal cavity
B. Thoracic cavity
Page 1 of 48
, Anatomy & Physiology (A&P)
C. Cranial cavity
D. Pelvic cavity
CORRECT ANSWER : B. Thoracic cavity — The thoracic cavity houses
the heart (in the mediastinum) and the lungs within the pleural cavities.
5. A frontal (coronal) plane divides the body into which sections?
A. Medial and lateral
B. Superior and inferior
C. Left and right
D. Anterior and posterior
CORRECT ANSWER : D. Anterior and posterior — A frontal plane runs
vertically and separates the body into front and back portions.
6. Which serous membrane lines the abdominal cavity and covers abdominal
organs?
A. Pericardium
B. Peritoneum
C. Meninges
D. Pleura
CORRECT ANSWER : B. Peritoneum — The peritoneum is the serous
membrane of the abdominopelvic cavity; the pleura and pericardium serve
the lungs and heart respectively.
7. Homeostasis is best defined as:
A. Constant cell division
B. Growth of new tissue
C. Maintenance of a stable internal environment
D. Breakdown of nutrients for energy
CORRECT ANSWER : C. Maintenance of a stable internal environment
— Homeostasis refers to the body's ability to maintain relatively stable
internal conditions despite external changes.
8. In a negative feedback loop, the response to a stimulus:
A. Has no effect on the stimulus
B. Reverses or reduces the original stimulus
C. Amplifies the original stimulus
D. Only occurs during illness
Page 2 of 48
, Anatomy & Physiology (A&P)
CORRECT ANSWER : B. Reverses or reduces the original stimulus —
Negative feedback loops counteract the initial change, returning the
variable toward its set point.
9. Which term describes a section that divides the body into upper and lower
portions?
A. Oblique plane
B. Transverse plane
C. Frontal plane
D. Sagittal plane
CORRECT ANSWER : B. Transverse plane — A transverse (horizontal)
plane creates superior and inferior sections.
10. The abdominopelvic region located at the center, below the umbilical
region, is the:
A. Hypogastric region
B. Umbilical region
C. Right iliac region
D. Epigastric region
CORRECT ANSWER : A. Hypogastric region — The hypogastric (pubic)
region sits inferior to the umbilical region in the nine-region abdominal
map.
11. Which type of bond involves the sharing of electron pairs between atoms?
A. Covalent bond
B. Ionic bond
C. Van der Waals interaction
D. Hydrogen bond
CORRECT ANSWER : A. Covalent bond — Covalent bonds form when
atoms share electrons, whereas ionic bonds involve electron transfer.
12. Water's high specific heat helps the body primarily by:
A. Increasing metabolic rate
B. Resisting rapid temperature changes
C. Breaking down large molecules
D. Transporting oxygen
Page 3 of 48
, Anatomy & Physiology (A&P)
CORRECT ANSWER : B. Resisting rapid temperature changes —
Because water resists temperature fluctuation, it helps stabilize body
temperature.
13. The plasma membrane is best described using which model?
A. Fluid mosaic model
B. Sliding filament model
C. Lock-and-key model
D. Chemiosmotic model
CORRECT ANSWER : A. Fluid mosaic model — The fluid mosaic model
describes the membrane as a fluid phospholipid bilayer with embedded,
mobile proteins.
14. Which organelle is primarily responsible for producing ATP?
A. Ribosome
B. Mitochondria
C. Lysosome
D. Golgi apparatus
CORRECT ANSWER : B. Mitochondria — Mitochondria carry out
aerobic respiration to generate most cellular ATP.
15. Ribosomes function to:
A. Digest worn-out organelles
B. Package and modify proteins for secretion
C. Synthesize proteins
D. Store genetic information
CORRECT ANSWER : C. Synthesize proteins — Ribosomes translate
mRNA into polypeptide chains during protein synthesis.
16. Which process describes movement of water across a selectively permeable
membrane?
A. Active transport
B. Osmosis
C. Diffusion
D. Filtration
CORRECT ANSWER : B. Osmosis — Osmosis is the diffusion of water
specifically, moving toward the area of higher solute concentration.
17. A solution that causes a cell to shrink due to water loss is termed:
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