Circulatory and Respiratory Systems

Front

What is the main organ in the respiratory system?

Back

Lungs

Front

What is the primary function of the respiratory system?

Back

To facilitate gas exchange, providing oxygen to the body and removing carbon dioxide.

Front

What are the main components of the circulatory system?

Back

Heart, blood vessels (arteries, veins, capillaries), and blood.

Front

How does physical activity affect heart rate and breathing rate?

Back

As physical activity increases, heart rate increases and breathing rate increases.

Front

What is the trachea commonly known as?

Back

The windpipe.

Front

What is the role 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 function of red blood cells in the circulatory system?

Back

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

Front

What is the difference between arteries and veins?

Back

Arteries carry oxygenated blood away from the heart, while veins carry deoxygenated blood back to the heart.

Front

What is gas exchange and where does it occur?

Back

Gas exchange is the process of oxygen entering the blood and carbon dioxide being removed, occurring in the alveoli of the lungs.

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3

Front

What is the role of the heart in the circulatory system?

Back

To pump blood throughout the body, supplying oxygen and nutrients to tissues and removing waste products.