HESI A2 Practice test Questions and
Answers 2026 Latest Update
Which of the following is NOT a function of
the digestive tract?
a) to use enzymes to break down food
b) to perform gas exchange
c) to remove waste from the body
d) to use peristalsis to move food along Ans: b) to perform gas
exchange
Gas exchange is a function of the respiratory system
The body, at all times, attempts to maintain homeostasis. The best
definition of homeostasis is:
a) a process that maintains the stability of the human body's
internal environment in response to changes in internal and
external conditions
b) a function via which the body breaks down glucose to use as
energy
c)a process that maintains the immune system's defenses
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, d) a process in which the body resists change to genetic structure
Ans: a) a process that maintains the stability of the human body's
internal environment in response to changes in internal and
external conditions
The endocrine system of the body is responsible for:
a) defense through the use of antibodies
b) communication through the use of hormones
c) metabolism through the use of enzymes
d) blood flow through the use of the heart muscle Ans: b)
communication through the use of hormones
Anatomical position shows the body in a(n) ________ position.
a) lateral
b) superior
c) anterior
d) posterior Ans: c) anterior
Vitamin K is created in the:
a) liver
b) lungs
c) intestinal tract
d) pancreas Ans: c) intestinal tract
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