The human heart and double circulatory system | Starter Quiz | Oak National Academy

What main tissue is the heart made of?

Answer explanation

The heart is made of different tissues but the main one is muscle.

True or false? The heart is an organ.

• true

• false

Answer explanation

The heart is made of muscle and connective tissue.

What is the largest artery in the body?

Answer explanation

The aorta carries oxygenated blood from the heart under high pressure.

What is the name of the arteries that supply the heart itself with blood?

• corotid arteries

• coronary arteries

• colon arteries

Answer explanation

The coronary arteries supply the heart itself with blood.

Which are the smallest blood vessels?

• arteries

• capillaries

• veins

Answer explanation

Capillaries are very small and carry blood to the cells.

Which organ system does the heart belong to?

• circulatory

• skeletal

• endocrine

• digestive

• respiratory

Answer explanation

The heart along with the blood vessels and blood makes up the circulatory system.