HESI A2 ANATOMY & PHYSIOLOGY PRACTICE QUESTION AND
ANSWERS 1. What is a clear, watery fluid found in
... [Show More] the anterior and posterior chambers of the eye?
A. Vitreous humor
B. Ciliary body
C. Lacrimal gland
D. Aqueous humor
Answer: D
Rationale: Aqueous humor is a clear, watery fluid similar in composition to blood plasma and is commonly found in the anterior and posterior
chambers. The posterior cavity, located dorsal to the lens, contains the (A) vitreous humor, a thick, clear, gelatinous fluid. The (B) ciliary body is
the structure of the eye that releases the aqueous humor. The (C) lacrimal gland continually secretes tears which moisten, lubricate, and protect
the surface of the eyes.
2. What is correct about the aqueous humor?
A. It balances absorption and pressure in the anterior chamber
B. It is secreted by the epithelium of the ciliary bodies
C. Its inability to circulate freely can cause elevated intraocular pressure D. All of the above
Answer: D
Rationale: All three choices describe how the aqueous fluid forms and circulates in the eye. The aqueous humor’s inability to absorb could
develop into an increased intraocular pressure which may lead to blindness when the pressure is transmitted to the vitreous humor.
3. All of the following are phagocytes EXCEPT:
A. Neutrophil
B. Lymphocytes
C. Eosinophil
D. Monocytes
Answer: B
Rationale: (A) Neutrophils are capable of phagocytosis, or destruction of bacteria. (B) Lymphocytes offer mediate immune responses, including
antigen-antibody reactions. (C) Eosinophils are phagocytes that protect you from parasites. (D) Monocytes are phagocytes that defend against
bacteria and viruses.
4. When a person is seen walking in heels, the ankle is described as being in what position?
A. Plantar flexion
B. Dorsiflexion
C. Eversion
D. Abduction
Answer: A
Rationale: (A) Plantar flexion is the movement which decreases the angle between the sole of the foot and the back of the leg, like ballerinas
dancing. (B).Dorsiflexion decreases the angle between the dorsum of the foot and the leg (C) Eversion is a turning outward or inside out, such as
a turning of the foot outward at the ankle. (D) Abduction refers to a motion that pulls a body part away from the midline, like abducting your
arms when you open them out like a bird.
5. Which of the following statements best illustrates a correct anatomical position?
A. Standing erect without moving facing down and thumbs pointing towards the body
B. Standing erect with palms facing forward and thumbs pointing away from the body
C. Standing erect with palms facing forward and thumbs pointing towards the body
D. Standing erect with palms facing down and thumbs pointing away from the body
Answer: B
Rationale: A correct anatomical position is exactly as described in answer choice B. This position is used as a reference to describe sites, motions,
body planes and regions. [Show Less]