HESI A2 Anatomy & Physiology 2026 | Most Tested
Questions & Verified Answers | Latest Update | Graded A+
1. Describe the role of the tunica media in the arterial wall structure.
The tunica media is responsible for regulating blood pressure and
flow through vasoconstriction and vasodilation.
The tunica media is involved in nutrient absorption.
The tunica media provides structural support to the artery.
The tunica media protects the artery from infection.
2. What is the primary role of extensor muscles in the body?
To flex joints
To stabilize joints
To extend joints
To rotate joints
3. What is the study of tissues called?
Anatomy
Cytology
Physiology
Histology
4. Describe the role of the small intestine in the digestion process after chyme
leaves the stomach.
The small intestine is responsible for further digestion and nutrient
absorption from chyme.
, The small intestine secretes hormones to regulate blood sugar.
The small intestine produces bile for fat digestion.
The small intestine stores waste products before elimination.
5. Describe the primary function of the urinary system in maintaining
homeostasis.
The urinary system aids in digestion and nutrient absorption.
The urinary system circulates blood and transports oxygen.
The urinary system regulates fluid balance and removes waste
products from the body.
The urinary system produces hormones and regulates metabolism.
6. What are the three layers that make up the walls of arteries?
Tunica intima, tunica media, tunica externa
Inner layer, middle layer, outer layer
Endothelium, smooth muscle, fibrous tissue
Epithelial layer, muscular layer, connective layer
7. Describe the role of tropic hormones in the endocrine system.
Tropic hormones directly affect metabolic processes in tissues.
Tropic hormones are responsible for the body's immune responses.
Tropic hormones are involved in the digestion of food.
Tropic hormones regulate the function of other endocrine glands,
influencing their hormone production.
,8. The axon is the part of a neuron that:
Makes neurotransmitters.
Sends signals to other neurons.
Increases signal speed.
Receives signals from other neurons.
9. If chyme is not properly processed in the small intestine, what potential
health issue could arise?
Malabsorption of nutrients
Excessive bile production
Increased stomach acidity
Constipation
10. Vasoconstriction and vasodilation of blood vessels are caused by a number
of factors including:
Nervous stimulation
Emotions
Closing/opening of precapillary sphincters
Hormones
All of the above
11. What is the primary role of the endocrine system in the body?
To transport oxygen in the blood.
To provide structural support to the body.
To facilitate movement of the body.
, To regulate bodily functions through hormones.
12. What are the three main types of muscle tissue?
Skeletal, cardiac, and smooth muscle
Striated, non-striated, and cardiac
Voluntary, involuntary, and striated
Epithelial, connective, and muscle
13. The walls of arteries are made of
dense regular connective tissue because they have to be strong
dense irregular connective tissue because they have to be strong
reticular connective tissue because they need to support all those
blood cells
elastic connective tissue because they have to stretch and recoil
14. The main function of axons is to:
anchor the neuron in the surrounding brain tissue
manufacture cell proteins
conduct action potentials to other neurons
receive action potentials from other neurons
15. The function of the dendrites is to...
Create the Action Potential
Store and Release Neurotransmitters
Receive info from neighboring neurons
Questions & Verified Answers | Latest Update | Graded A+
1. Describe the role of the tunica media in the arterial wall structure.
The tunica media is responsible for regulating blood pressure and
flow through vasoconstriction and vasodilation.
The tunica media is involved in nutrient absorption.
The tunica media provides structural support to the artery.
The tunica media protects the artery from infection.
2. What is the primary role of extensor muscles in the body?
To flex joints
To stabilize joints
To extend joints
To rotate joints
3. What is the study of tissues called?
Anatomy
Cytology
Physiology
Histology
4. Describe the role of the small intestine in the digestion process after chyme
leaves the stomach.
The small intestine is responsible for further digestion and nutrient
absorption from chyme.
, The small intestine secretes hormones to regulate blood sugar.
The small intestine produces bile for fat digestion.
The small intestine stores waste products before elimination.
5. Describe the primary function of the urinary system in maintaining
homeostasis.
The urinary system aids in digestion and nutrient absorption.
The urinary system circulates blood and transports oxygen.
The urinary system regulates fluid balance and removes waste
products from the body.
The urinary system produces hormones and regulates metabolism.
6. What are the three layers that make up the walls of arteries?
Tunica intima, tunica media, tunica externa
Inner layer, middle layer, outer layer
Endothelium, smooth muscle, fibrous tissue
Epithelial layer, muscular layer, connective layer
7. Describe the role of tropic hormones in the endocrine system.
Tropic hormones directly affect metabolic processes in tissues.
Tropic hormones are responsible for the body's immune responses.
Tropic hormones are involved in the digestion of food.
Tropic hormones regulate the function of other endocrine glands,
influencing their hormone production.
,8. The axon is the part of a neuron that:
Makes neurotransmitters.
Sends signals to other neurons.
Increases signal speed.
Receives signals from other neurons.
9. If chyme is not properly processed in the small intestine, what potential
health issue could arise?
Malabsorption of nutrients
Excessive bile production
Increased stomach acidity
Constipation
10. Vasoconstriction and vasodilation of blood vessels are caused by a number
of factors including:
Nervous stimulation
Emotions
Closing/opening of precapillary sphincters
Hormones
All of the above
11. What is the primary role of the endocrine system in the body?
To transport oxygen in the blood.
To provide structural support to the body.
To facilitate movement of the body.
, To regulate bodily functions through hormones.
12. What are the three main types of muscle tissue?
Skeletal, cardiac, and smooth muscle
Striated, non-striated, and cardiac
Voluntary, involuntary, and striated
Epithelial, connective, and muscle
13. The walls of arteries are made of
dense regular connective tissue because they have to be strong
dense irregular connective tissue because they have to be strong
reticular connective tissue because they need to support all those
blood cells
elastic connective tissue because they have to stretch and recoil
14. The main function of axons is to:
anchor the neuron in the surrounding brain tissue
manufacture cell proteins
conduct action potentials to other neurons
receive action potentials from other neurons
15. The function of the dendrites is to...
Create the Action Potential
Store and Release Neurotransmitters
Receive info from neighboring neurons
