Circulatory Systems

Question 1

What are the functions of the circulatory system?

Answer 1

Transports oxygen and carbon dioxide to and from cells.
Transports nutrients and removes waste.
Transports chemical messages.
Transports heat around body.
Transports factors involved in immunity.
Homeostasis- maintaining a constant internal environment.

Question 2

Which 2 steps of gas exchange concern the circulatory system?

Answer 2

Circulation

Cellular respiration

Question 3

What are the three main type of blood vessels?

Answer 3

Arteries
Capillaries
Veins

Question 4

Which blood vessel takes blood away from the heart under high pressure?

Answer 4

Arteries

Question 5

Which blood vessel returns blood to the heart under low pressure?

Answer 5

Veins

Question 6

Which blood vessel allows gases and molecules to exchange with tissues?

Answer 6

Capillaries

Question 7

The contraction phase of the heart called_______ is coordinated with the relaxation phase called______.

Answer 7

Systole

Diastole