Chapter 11 – The Cardiovascular System - Blood Vessels and the Circulation of Blood

Question 1

What does the Cardiovascular System do?

Answer 1

delivers oxygen and nutrients to cells of body tissue

Question 2

What does the Cardiovascular system consist of?

Answer 2

• Heart (muscular pump)

- Blood vessels (fuel line and transportation network)

Question 3

What is Arteries?

Answer 3

the vessels that lead away from the heart

Question 4

What is Veins?

Answer 4

move deoxygenated blood toward the heart from the tissues

Question 5

How is Veins different from Arteries?

Answer 5

• the walls is thinner in Veins

Question 6

What are smaller branches of arteries called?

Where do the smaller branches of arteries carry blood to?

Answer 6

• Arterioles

- carry the blood to the tiniest of blood vessels, the capillaries.

Question 7

What are small veins that carry waste-filled blood back to the heart called?

Answer 7

Venules

Question 8

What does Capillaries do?

Answer 8

They form the point of exchange for oxygen and nutrients into body cells and waste products coming from body cells.

Question 9

What is the smallest vessels?

Answer 9

Capillaries

Question 10

Arteries, their walls are lined with?

Answer 10

• connective tissue, muscle tissue and elastic tissue, with an innermost lining of epithelial cells

Question 11

What is the innermost lining of epithelial cells in the Arteries called?

Answer 11

• Endothelium

Question 12

What does the Endothelial Cells do?

Answer 12

• secrete factors that affect the size of the blood vessels, reduce blood clotting and promote the growth of blood vessels

Question 13

Why is the Brachial Artery important?

Answer 13

• because blood pressure is routinely measured at this junction