HESI A2 ACTUAL 2026 EXAMINERS SET QUESTIONS
AND ANSWERS SURE A+
✔✔Muscles produce contraction due to the sliding of:
a) filaments
b) sarcomeres
c) flexors
d) neutrons - ✔✔a) filaments
During muscle contraction, filaments slide together by using energy supplied by ATP.
✔✔The medulla oblongata has what primary responsibility?
a) balance
b) intellect
c) vital functions
d) sensory input - ✔✔c) vital functions
The medulla oblongata is responsible for basic vital functions, including respiration and
heart rate.
✔✔Which of the following is true about simple reflexes?
a) they travel through the entire body
b) they travel only through the spinal cord
, c) they travel only through the brain
d) they do not travel and remain localized - ✔✔b) they travel only through the spinal
cord
Simple reflexes, known also as spinal reflexes, travel only through the spinal cord, and
do not reach the brain.
✔✔What is the primary role of estrogen in the female reproductive system?
a) it initiates the preparation of the endometrium for pregnancy
b) it triggers the release of the egg from the ovary
c) it causes fertilization
d) it triggers the production of breast milk - ✔✔a) it initiates the preparation of the
endometrium for pregnancy
✔✔What is the name of the structure that transfers urine from the kidneys to the
bladder? - ✔✔-ureters
✔✔Humans can survive most easily without which of the following?
a) pancreas
b) lungs
c) gallbladder
d) bladder - ✔✔c) gallbladder
The gallbladder's function is to store bile, but the GI tract is more than capable of
producing bile to digest fat without it.
✔✔Which of the following is NOT a role of cortisol?
a) reducing inflammation
b) raising the blood sugar level
c) inhibiting the release of histamine
d) controlling motor impulses - ✔✔d) controlling motor impulses
✔✔How many pairs of spinal nerves are known to exit the spinal cord? - ✔✔-31
✔✔The spinal cord reaches from the base of the skull to the first or second lumbar
vertebra. The base of the skull is also known as:
a) foremen magnum
b) filaments
c) cerebellum
d) corpus callosum - ✔✔a) foremen magnum
✔✔Cyclic adenosine monophosphate is a substance that performs which of the
following?
a) acts as part of the cell membrane
AND ANSWERS SURE A+
✔✔Muscles produce contraction due to the sliding of:
a) filaments
b) sarcomeres
c) flexors
d) neutrons - ✔✔a) filaments
During muscle contraction, filaments slide together by using energy supplied by ATP.
✔✔The medulla oblongata has what primary responsibility?
a) balance
b) intellect
c) vital functions
d) sensory input - ✔✔c) vital functions
The medulla oblongata is responsible for basic vital functions, including respiration and
heart rate.
✔✔Which of the following is true about simple reflexes?
a) they travel through the entire body
b) they travel only through the spinal cord
, c) they travel only through the brain
d) they do not travel and remain localized - ✔✔b) they travel only through the spinal
cord
Simple reflexes, known also as spinal reflexes, travel only through the spinal cord, and
do not reach the brain.
✔✔What is the primary role of estrogen in the female reproductive system?
a) it initiates the preparation of the endometrium for pregnancy
b) it triggers the release of the egg from the ovary
c) it causes fertilization
d) it triggers the production of breast milk - ✔✔a) it initiates the preparation of the
endometrium for pregnancy
✔✔What is the name of the structure that transfers urine from the kidneys to the
bladder? - ✔✔-ureters
✔✔Humans can survive most easily without which of the following?
a) pancreas
b) lungs
c) gallbladder
d) bladder - ✔✔c) gallbladder
The gallbladder's function is to store bile, but the GI tract is more than capable of
producing bile to digest fat without it.
✔✔Which of the following is NOT a role of cortisol?
a) reducing inflammation
b) raising the blood sugar level
c) inhibiting the release of histamine
d) controlling motor impulses - ✔✔d) controlling motor impulses
✔✔How many pairs of spinal nerves are known to exit the spinal cord? - ✔✔-31
✔✔The spinal cord reaches from the base of the skull to the first or second lumbar
vertebra. The base of the skull is also known as:
a) foremen magnum
b) filaments
c) cerebellum
d) corpus callosum - ✔✔a) foremen magnum
✔✔Cyclic adenosine monophosphate is a substance that performs which of the
following?
a) acts as part of the cell membrane
