HESI A2 ANATOMY & PHYSIOLOGY EXAM QUESTIONS & ANSWERS 2026-20… EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
HESI A2 Anatomy &
Physiology Exam
Questions & Answers
2026-2027 | Updated
Edition (Rationales)
Verified Answers Exam Ready With Rationales
125 QUESTIONS
DOCUMENT OVERVIEW
This document provides 125 HESI A2 Anatomy & Physiology exam questions, each with the correct
answer and detailed rationales. It covers core human physiology and anatomical concepts. This
resource is ideal for comprehensive study, targeted review, and preparation for certification exams.
CONTENTS
• Digestive & Integumentary Systems • Anatomical Terminology & Body
Organization
• Cellular Biology & Tissues • Skeletal & Muscular Systems
• Cardiovascular & Respiratory Systems • Reproductive System
• Nervous & Sensory Systems • Homeostasis & General Physiology
• Urinary & Endocrine Systems
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 125
A patient who is on a plant-based diet complains that their skin is appearing to take on a yellowish
color. Which of the following foods would you expect the patient to have eaten a large amount of?
CORRECT ANSWER
Carrots
RATIONALE
Ingestion of large quantities of beta-carotene, a precursor to vitamin A found abundantly in carrots, can lead to
carotenemia, a harmless condition causing yellowing of the skin. This occurs because the body converts excess
beta-carotene into a pigment that deposits in the stratum corneum.
Q2 QUESTION 2 OF 125
Where is the popliteal artery located?
CORRECT ANSWER
Behind the knee
RATIONALE
The popliteal artery is the distal continuation of the femoral artery, traversing the popliteal fossa, which is the
anatomical space located behind the knee joint. This region is critical for the arterial supply to the lower leg.
Q3 QUESTION 3 OF 125
What is the purpose of gastric mucous?
CORRECT ANSWER
To protect the stomach lining from acid and digestive enzymes.
RATIONALE
Gastric mucous forms a physical and chemical barrier, neutralizing acid and inactivating pepsin to prevent
auto-digestion of the gastric epithelium. This protective layer is essential for maintaining the integrity of the
stomach lining against its harsh internal environment.
Page 2
, Q4 QUESTION 4 OF 125
Where does digestion begin in the alimentary canal?
CORRECT ANSWER
Oral cavity
RATIONALE
Digestion initiates in the oral cavity with mechanical breakdown by mastication and chemical breakdown of
carbohydrates by salivary amylase. This process is the first step in the gastrointestinal tract's breakdown of
food for absorption.
Q5 QUESTION 5 OF 125
Which organ is responsible for most of the nutrient absorption in the body?
CORRECT ANSWER
Small intestine
RATIONALE
The small intestine's extensive surface area, due to villi and microvilli, maximizes nutrient absorption. This
specialized structure is key to the body's assimilation of digested food.
Q6 QUESTION 6 OF 125
Which of the following options correctly lists the layers of the epidermis from the most superficial to
the deepest layer?
CORRECT ANSWER
Stratum corneum, stratum lucidum, stratum granulosum, stratum germinativum
RATIONALE
The epidermis's layers, from superficial to deep, are the stratum corneum, stratum lucidum, stratum
granulosum, and stratum germinativum (basale and spinosum), reflecting the keratinocyte maturation and
migration process. This sequence represents the desquamation of the outermost cells and the proliferation of
new cells at the basal layer.
Q7 QUESTION 7 OF 125
What is the function of the sebaceous glands?
Page 3
, CORRECT ANSWER
To secrete oil that lubricates the skin and prevents drying.
RATIONALE
Sebaceous glands produce sebum, an oily substance that lubricates the epidermis, waterproofs the skin, and
inhibits bacterial growth. This prevents excessive transepidermal water loss and maintains skin hydration.
Q8 QUESTION 8 OF 125
In what area of the body would you expect to find especially thick stratum corneum?
CORRECT ANSWER
Heel of the foot
RATIONALE
The stratum corneum is the outermost epidermal layer, providing protection through its thickness, which is
greatest in areas subjected to significant friction and pressure like the heel of the foot. This adaptation
functions as a mechanical barrier against abrasion and trauma.
Q9 QUESTION 9 OF 125
Eccrine glands secrete a watery substance onto the surface of the skin to maintain temperature
homeostasis through which process?
CORRECT ANSWER
Evaporation
RATIONALE
Evaporation of the secreted fluid from the skin's surface facilitates heat loss from the body, thereby regulating
core temperature. This process leverages the principle of evaporative cooling, a key mechanism in
thermoregulation.
Q10 QUESTION 10 OF 125
Mitosis occurs in which layer of the skin?
CORRECT ANSWER
stratum germinativum
Page 4
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
HESI A2 Anatomy &
Physiology Exam
Questions & Answers
2026-2027 | Updated
Edition (Rationales)
Verified Answers Exam Ready With Rationales
125 QUESTIONS
DOCUMENT OVERVIEW
This document provides 125 HESI A2 Anatomy & Physiology exam questions, each with the correct
answer and detailed rationales. It covers core human physiology and anatomical concepts. This
resource is ideal for comprehensive study, targeted review, and preparation for certification exams.
CONTENTS
• Digestive & Integumentary Systems • Anatomical Terminology & Body
Organization
• Cellular Biology & Tissues • Skeletal & Muscular Systems
• Cardiovascular & Respiratory Systems • Reproductive System
• Nervous & Sensory Systems • Homeostasis & General Physiology
• Urinary & Endocrine Systems
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 125
A patient who is on a plant-based diet complains that their skin is appearing to take on a yellowish
color. Which of the following foods would you expect the patient to have eaten a large amount of?
CORRECT ANSWER
Carrots
RATIONALE
Ingestion of large quantities of beta-carotene, a precursor to vitamin A found abundantly in carrots, can lead to
carotenemia, a harmless condition causing yellowing of the skin. This occurs because the body converts excess
beta-carotene into a pigment that deposits in the stratum corneum.
Q2 QUESTION 2 OF 125
Where is the popliteal artery located?
CORRECT ANSWER
Behind the knee
RATIONALE
The popliteal artery is the distal continuation of the femoral artery, traversing the popliteal fossa, which is the
anatomical space located behind the knee joint. This region is critical for the arterial supply to the lower leg.
Q3 QUESTION 3 OF 125
What is the purpose of gastric mucous?
CORRECT ANSWER
To protect the stomach lining from acid and digestive enzymes.
RATIONALE
Gastric mucous forms a physical and chemical barrier, neutralizing acid and inactivating pepsin to prevent
auto-digestion of the gastric epithelium. This protective layer is essential for maintaining the integrity of the
stomach lining against its harsh internal environment.
Page 2
, Q4 QUESTION 4 OF 125
Where does digestion begin in the alimentary canal?
CORRECT ANSWER
Oral cavity
RATIONALE
Digestion initiates in the oral cavity with mechanical breakdown by mastication and chemical breakdown of
carbohydrates by salivary amylase. This process is the first step in the gastrointestinal tract's breakdown of
food for absorption.
Q5 QUESTION 5 OF 125
Which organ is responsible for most of the nutrient absorption in the body?
CORRECT ANSWER
Small intestine
RATIONALE
The small intestine's extensive surface area, due to villi and microvilli, maximizes nutrient absorption. This
specialized structure is key to the body's assimilation of digested food.
Q6 QUESTION 6 OF 125
Which of the following options correctly lists the layers of the epidermis from the most superficial to
the deepest layer?
CORRECT ANSWER
Stratum corneum, stratum lucidum, stratum granulosum, stratum germinativum
RATIONALE
The epidermis's layers, from superficial to deep, are the stratum corneum, stratum lucidum, stratum
granulosum, and stratum germinativum (basale and spinosum), reflecting the keratinocyte maturation and
migration process. This sequence represents the desquamation of the outermost cells and the proliferation of
new cells at the basal layer.
Q7 QUESTION 7 OF 125
What is the function of the sebaceous glands?
Page 3
, CORRECT ANSWER
To secrete oil that lubricates the skin and prevents drying.
RATIONALE
Sebaceous glands produce sebum, an oily substance that lubricates the epidermis, waterproofs the skin, and
inhibits bacterial growth. This prevents excessive transepidermal water loss and maintains skin hydration.
Q8 QUESTION 8 OF 125
In what area of the body would you expect to find especially thick stratum corneum?
CORRECT ANSWER
Heel of the foot
RATIONALE
The stratum corneum is the outermost epidermal layer, providing protection through its thickness, which is
greatest in areas subjected to significant friction and pressure like the heel of the foot. This adaptation
functions as a mechanical barrier against abrasion and trauma.
Q9 QUESTION 9 OF 125
Eccrine glands secrete a watery substance onto the surface of the skin to maintain temperature
homeostasis through which process?
CORRECT ANSWER
Evaporation
RATIONALE
Evaporation of the secreted fluid from the skin's surface facilitates heat loss from the body, thereby regulating
core temperature. This process leverages the principle of evaporative cooling, a key mechanism in
thermoregulation.
Q10 QUESTION 10 OF 125
Mitosis occurs in which layer of the skin?
CORRECT ANSWER
stratum germinativum
Page 4
