Circulatory, Respiratory, and Nervous Systems Test Review

Front

How does oxygen flow between the alveoli and the capillaries?

Back

It diffuses from the alveoli into the capillaries.

Front

Which gas enters the blood stream when exhaling?

Back

Carbon dioxide.

Front

When hormones are released from the brain, how do they travel to body cells?

Back

They travel through the circulatory system.

Front

What part of the neuron stores the nucleus and cytoplasm?

Back

Cell body.

Front

Where does air enter directly after the bronchi before the alveoli?

Back

Bronchioles.

Front

What is the primary function of the circulatory system?

Back

To transport nutrients, gases, hormones, and waste products throughout the body.

Front

What is the role of alveoli in the respiratory system?

Back

Alveoli are tiny air sacs where gas exchange occurs between the air and blood.

Front

What is the main function of red blood cells?

Back

To carry oxygen from the lungs to the body's tissues and return carbon dioxide to the lungs.

Front

What is the function of the diaphragm in respiration?

Back

The diaphragm contracts and relaxes to help draw air into and push air out of the lungs.

Front

What is the pathway of blood through the heart?

Back

Blood flows from the body into the right atrium, then to the right ventricle, to the lungs, back to the left atrium, then to the left ventricle, and out to the body.