Session 8: Cardiovasular System

Question 1

Name the 2 circulation systems.

Answer 1

1. Pulmonary circulation

2. Systemic circulation

Question 2

Define close cardiovascular system.

Answer 2

The blood never leaves the vessels of the body.

Question 3

How many litres of circulating blood is there in an average average adult?

Answer 3

5L

Question 4

How is the 5L of circulating blood split in an average adult?

Answer 4

2L of red cells, 3L of plasma

Question 5

What percentage of blood is circulating in the veins at any one time?

Answer 5

65%

Question 6

Where is the majority of circulating blood at any one time?

Answer 6

Veins

Question 7

Where is the least amount of circulating blood at any one time?

Answer 7

Capillaries (5%)

Question 8

What is bridging?

Answer 8

Compression of a section of coronary artery during systole.

Question 9

What is an end artery?

Answer 9

Terminal artery which supplies all or most blood to a body part without colateral circulation.

Question 10

Name the 3 layers of an artery.

Answer 10

1. Tunica intima (next to the lumen)
2. Tunica media
3. Tunica adventitia

Question 11

What is an aneurysm?

Answer 11

Dilation of a blood vessel.