HESI A2 A&P Questions and Answers
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Which is an anterior muscle?
A. Gluteus maximus
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B. Quadriceps femoris
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C. Biceps femoris
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D. Adductor magnus Ans: B. An anterior muscle
is located near the front of the body. Of those
listed, the quadriceps( frontal thigh muscle) is
the most anterior.
How might the headrest on a car prevent
traumatic injury?
A. By limiting hyperflexion of the neck
B. By limiting hyperextension of the neck
C. By reducing vertebral compression
D. By preventing disc degeneration Ans: B. The
headrest prevents the head from moving too far
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backward, or hyperextending the neck beyond
its normal range.
Which might you expect to see in a whiplash
injury?
A. Cardiopulmonary problems
B. Side-to-side spinal curvature
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C. Eventual herniation of discs
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D. Traumatic injury to ligaments Ans: D. Because
of the hyperflexion and hyperextension caused
by such a collision, it is not uncommon to find
tears or stretching of the ligaments of the spine.
The injury is front-to-back, making choice B
unlikely, and a herniated disc (choice C) is more
of a compression injury.
Muscle contractions that normally move food
along the human digestive system are known as
________.
A. defecation
B. osmosis
C. peristalsis
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D. circulation Ans: C. Defecation(choice A) is the
elimination of waste. Osmosis (choice B) is the
movement of molecules across a membrane.
Circulation (choice D) is the movement of blood
through the body. Peristalsis (choice C) is the
involuntary, wavelike movement of muscles in
the intestine and elsewhere that pushes food
along.
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Which type of nutrient does not provide the
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body with energy?
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A. Vitamin
B. Carbohydrate
C. Fat
D. Protein Ans: A. Some nutrients supply energy,
and others support metabolism. Nutrients in the
first set include carbohydrates, proteins, and
fats. Those in the secound set include vitamins,
minerals, and water.
Where would you be likely to find a Schwann
cell?
A. In the digestive system
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B. In the nervous system
C. In the skeletal system
D. In the muscular system Ans: B. Schwann cells
wrap around the nerve fibers and form the
myelin sheath in the peripheral nervous system.
How does the nervous system work with the
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muscular system?
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A. The muscles of the body produce chemicals
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that feed the nerves.
B. The nervous system tells the muscles how to
respond to the environment.
C. The nervous system releases chemicals that
remove excess waste from the muscles.
D. The muscular system provides input that
allows the nerves to make decisions. Ans: B. The
nervous system is made up of the brain, spinal
cord, and nerves. It receives and transmits
signals from the environment that regulate
voluntary and involuntary movement.
Which part of the nervous system includes the
femoral , radial, and ulnar nerves?