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 scientist 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
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

In which part of the body is keratin NOT found?
a) hair
b) skin
c) nails
d) teeth
Answer: d) teeth