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HESI A2 PRACTICE TEST EXAM 2026
QUESTIONS AND CORRECT
DETAILED ANSWERS | RATED A+ |
NEW AND REVISED
What is Erythropoiesis?
a) red blood cell formation
b) white blood cell formation
c) the destruction of red blood cells
d) the destruction of white blood cells - ANSWER- a) red blood cell
formation
Blood cell formation is called Hemopoiesis.
Erythro- red blood cells
In which part of the body is keratin NOT found?
a) hair
b) skin
c) nails
d) teeth - ANSWER- d) teeth
Keratin is a family of fibrous structural proteins. Keratin is the key
structural component of hair, nails, and the outer layer of human skin
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What is the relationship between sarcomeres and muscle cells?
a) sarcomeres are muscle cells
b) sarcomeres contain muscle cells
c) muscle cells contain myofibrils, which in turn are made up of
sarcomeres
d) muscle cells contain sarcomeres, which in turn are made up of
myofibrils - ANSWER- c) muscle cells contain myofibrils, which in turn
are made up of sarcomeres
A person who has torn their vastus lateralis muscle will need which of
the following?
a) an arm sling
b) a cane or crutches
c) insulin
d) a neck brace - ANSWER- b) a cane or crutches
The vastus lateralis muscle is a voluntary muscle in the legs. It is part of
the quadriceps.
Muscles produce contraction due to the sliding of:
a) filaments
b) sarcomeres
c) flexors
d) neutrons - ANSWER- a) filaments
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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 - ANSWER- 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 - ANSWER- 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?
HESI A2 PRACTICE TEST EXAM 2026
QUESTIONS AND CORRECT
DETAILED ANSWERS | RATED A+ |
NEW AND REVISED
What is Erythropoiesis?
a) red blood cell formation
b) white blood cell formation
c) the destruction of red blood cells
d) the destruction of white blood cells - ANSWER- a) red blood cell
formation
Blood cell formation is called Hemopoiesis.
Erythro- red blood cells
In which part of the body is keratin NOT found?
a) hair
b) skin
c) nails
d) teeth - ANSWER- d) teeth
Keratin is a family of fibrous structural proteins. Keratin is the key
structural component of hair, nails, and the outer layer of human skin
,2|Page
What is the relationship between sarcomeres and muscle cells?
a) sarcomeres are muscle cells
b) sarcomeres contain muscle cells
c) muscle cells contain myofibrils, which in turn are made up of
sarcomeres
d) muscle cells contain sarcomeres, which in turn are made up of
myofibrils - ANSWER- c) muscle cells contain myofibrils, which in turn
are made up of sarcomeres
A person who has torn their vastus lateralis muscle will need which of
the following?
a) an arm sling
b) a cane or crutches
c) insulin
d) a neck brace - ANSWER- b) a cane or crutches
The vastus lateralis muscle is a voluntary muscle in the legs. It is part of
the quadriceps.
Muscles produce contraction due to the sliding of:
a) filaments
b) sarcomeres
c) flexors
d) neutrons - ANSWER- a) filaments
, 3|Page
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 - ANSWER- 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 - ANSWER- 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?
