HESI A2 Practice test questions and
answers Updated 2026
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 - Answerb) 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 - Answera) 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 - Answerb) communication through the use of
hormones
Anatomical position shows the body in a(n) ________ position.
a) lateral
b) superior
c) anterior
d) posterior - Answerc) anterior
, Vitamin K is created in the:
a) liver
b) lungs
c) intestinal tract
d) pancreas - Answerc) intestinal tract
The largest organ in the body is the ________.
a) skin
b) GI tract
c) femur
d) stomach - Answera) 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 - Answerd) histologist
Histology is the study of tissues.
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 - Answera) red blood cell formation
Blood cell formation is called Hemopoiesis.
Erythro- red blood cells
In which part of the body is keratin NOT found?
answers Updated 2026
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 - Answerb) 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 - Answera) 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 - Answerb) communication through the use of
hormones
Anatomical position shows the body in a(n) ________ position.
a) lateral
b) superior
c) anterior
d) posterior - Answerc) anterior
, Vitamin K is created in the:
a) liver
b) lungs
c) intestinal tract
d) pancreas - Answerc) intestinal tract
The largest organ in the body is the ________.
a) skin
b) GI tract
c) femur
d) stomach - Answera) 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 - Answerd) histologist
Histology is the study of tissues.
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 - Answera) red blood cell formation
Blood cell formation is called Hemopoiesis.
Erythro- red blood cells
In which part of the body is keratin NOT found?
