Exam Study Guide

Front

Where does the superior vena cava return blood to the heart from?

Back

Upper portion of body like head and arms.

Front

Which component is responsible for initially stimulating a muscle contraction?

Back

Electrochemical signals.

Front

True or False: The adrenal cortex releases small amounts of male hormones, testosterone in females.

Back

True.

Front

What are unmyelinated fibers and cell bodies in the brain and spinal cord called?

Back

Gray matter.

Front

What do axons do?

Back

Carry electrical impulses that are the means of communication within the brain and between the brain and the rest of the body.

Front

What is the function of the heart?

Back

To pump blood throughout the body.

Front

What is the role of the lungs in the respiratory system?

Back

To exchange oxygen and carbon dioxide.

Front

What is the main function of red blood cells?

Back

To carry oxygen from the lungs to the body and carbon dioxide from the body back to the lungs.

Front

What is the purpose of the nervous system?

Back

To transmit signals between different parts of the body.

Front

What is the function of the kidneys?

Back

To filter waste from the blood and produce urine.