Body Systems (Circulatory, Respiratory, Endocrine) Review

Front

What is a hormone?

Back

A chemical messenger that sends signals by traveling through the bloodstream and attaching to the receptors of target cells.

Front

What gland helps maintain sugar levels in the body?

Back

The pancreas.

Front

What are white blood cells also known as?

Back

Leukocytes.

Front

What is the function of the diaphragm muscle?

Back

It attaches to the lungs and contracts and relaxes to help in breathing.

Front

What are the air sacs in the lungs where gas exchange occurs called?

Back

Alveoli.

Front

What is the primary function of the circulatory system?

Back

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

Front

What is the role of red blood cells?

Back

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

Front

What is the main function of the respiratory system?

Back

To facilitate gas exchange, bringing oxygen into the body and removing carbon dioxide.

Front

What is the role of the endocrine system?

Back

To regulate bodily functions through hormones.

Front

What is the largest organ in the human body?

Back

The skin.