Circulatory System

Front

What is the main function of the circulatory system?

Back

The main function of the circulatory system is to transport materials such as oxygen, nutrients, hormones, and waste products throughout the body.

Front

What gas is primarily transported by the circulatory system for cellular respiration?

Back

Oxygen is the gas transported by the circulatory system and is used by cells during respiration to release energy stored in food.

Front

How do blood vessels contribute to the circulatory system?

Back

Blood vessels transport nutrients and oxygen to cells and remove waste products like carbon dioxide.

Front

What happens to heart rate during exercise?

Back

If a person exercises, then their heart rate will increase to supply more oxygen to the muscles.

Front

How can you measure a person's heart rate?

Back

You can measure a person's heart rate by putting two fingers on the wrist to feel the pulse.

Front

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

Back

The heart pumps blood throughout the body, supplying oxygen and nutrients while removing waste products.

Front

What are arteries?

Back

Arteries are blood vessels that carry oxygen-rich blood away from the heart to the body's tissues.

Front

What are veins?

Back

Veins are blood vessels that carry oxygen-poor blood back to the heart.

Front

What is the significance of capillaries in the circulatory system?

Back

Capillaries are tiny blood vessels where the exchange of oxygen, nutrients, and waste occurs between blood and tissues.

Front

What is blood made of?

Back

Blood is made of red blood cells, white blood cells, platelets, and plasma.