circulatory system

Question 1

• A blood vessel that carries oxygen-rich blood from the heart to tissues and organs in the body.

Answer 1

artery

Question 2

A blood vessel that carries oxygen-poor blood to the heart from tissues and organs in the body.

Answer 2

vein

Question 3

The smallest type of blood vessel that connects small arteries to small veins.

Answer 3

capillary

Question 4

The atria (top chambers) are thin-walled chambers where blood enters the heart.

Answer 4

Atrium

Question 5

: The ventricles (bottom chambers) are thick-walled chambers which push blood away from the heart.

Answer 5

Ventricle

Question 6

• A wall of tissue that separates the left and right sides of the heart

Answer 6

septum

Question 7

• Flaps that are located within the heart that open and close to control the flow of blood. They ensure blood flows in the correct direction, preventing it from flowing backward.

Answer 7

valve