Circulatory and Respiratory Systems

Front

What protein in red blood cells binds to oxygen?

Back

Hemoglobin

Front

What element is essential for hemoglobin to function properly?

Back

Iron

Front

What system is responsible for gas exchange in the body?

Back

Respiratory System

Front

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

Back

Alveoli

Front

What is the thickest and strongest type of blood vessel?

Back

Artery

Front

What do the lungs take in when you breathe?

Back

Oxygen

Front

What do the lungs remove when you breathe out?

Back

Carbon Dioxide

Front

What is the main function of the circulatory system?

Back

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

Front

What is the primary function of red blood cells?

Back

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

Front

What is the role of the diaphragm in respiration?

Back

To contract and expand the lungs, facilitating breathing.