HESI A2 Practice test QUESTIONS AND
ANSWERS GRADED A+ | 2025/2026
GUIDE
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 - ANSWER 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
d) a process in which the body resists change to genetic structure - ANSWER
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 - ANSWER b)
communication through the use of hormones
, Anatomical position shows the body in a(n) ________ position.
a) lateral
b) superior
c) anterior
d) posterior - ANSWER c) anterior
Vitamin K is created in the:
a) liver
b) lungs
c) intestinal tract
d) pancreas - ANSWER c) intestinal tract
The largest organ in the body is the ________.
a) skin
b) GI tract
c) femur
d) stomach - ANSWER a) skin
A medical scientists wants to study the parenchyma of the kidney. This scientist
would correctly be known, most specifically, as a:
a) biologist
b) doctor
c) anatomist
d) histologist - ANSWER d) histologist
Histology is the study of tissues.
What is Erythropoiesis?
a) red blood cell formation
ANSWERS GRADED A+ | 2025/2026
GUIDE
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 - ANSWER 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
d) a process in which the body resists change to genetic structure - ANSWER
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 - ANSWER b)
communication through the use of hormones
, Anatomical position shows the body in a(n) ________ position.
a) lateral
b) superior
c) anterior
d) posterior - ANSWER c) anterior
Vitamin K is created in the:
a) liver
b) lungs
c) intestinal tract
d) pancreas - ANSWER c) intestinal tract
The largest organ in the body is the ________.
a) skin
b) GI tract
c) femur
d) stomach - ANSWER a) skin
A medical scientists wants to study the parenchyma of the kidney. This scientist
would correctly be known, most specifically, as a:
a) biologist
b) doctor
c) anatomist
d) histologist - ANSWER d) histologist
Histology is the study of tissues.
What is Erythropoiesis?
a) red blood cell formation
