Blood Vessels Flashcards Preview

Anatomy and Physiology > Blood Vessels > Flashcards

Flashcards in Blood Vessels Deck (29):
1

What are venues?

The tinniest veins

2

What are the three physical characteristics of arteries?

1. Thick-walled 2. Elastic 3. Smooth muscle

3

Do you feel your pulse in your arteries or veins?

Arteries

4

Do arteries or veins have valves?

Veins

5

What has blood reservoirs?

Veins

6

What percent of blood volume are in blood reservoirs?

60-70%

7

What is the major site of peripheral resistance which affects blood pressure/

Arterioles

8

Do arterioles respond to SNS or PNS?

Primarily sympathetic innervation

9

Do arterioles respond to ANS?

Yes

10

What veins have little to no smooth muscle?

Venules

11

What is a another name for arterioles?

Resistance vessels

12

What are capillaries?

The body's exchange vessels which allow for diffusion/filtration of nutrients/waste between blood and tissue cells.

13

What makes up the wall of capillaries?

simple squamous epithelium

14

Are capillaries microscopic?

Yes

15

What is the flow of capillaries regulated by?

Precapillary sphincters

16

Is the aorta ascending or descending?

Ascending

17

How many coronary arteries are there?

2

18

What are the three main functions of the coronary arteries?

1. Supply oxygenated blood to myocardium 2. First 2 branches off aorta (ascending aorta) 3. Fill with blood during ventricular relaxation

19

What is the order of coronary circulation? (5 steps)

L&R coronary arteries > capillary beds > cardiac veins > coronary sinus (vein) > Right atrium

20

What is the circle of Willis?

Arterial anastomosis at base of brain

21

What are three superficial veins of the arms?

1. Basilic 2 Cephalic 3. Median cubital

22

Portal veins carry blood into the liver from where?

1. Splenic v. 2. gastric v. 3. Superior mesenteric v. 4. Inferior mesenteric v.

23

What is the function of the hepatic portal system?

Carries blood from abdominal viscera to liver to be detoxified and modified before returning it to general circulation.

24

What are are Kupffer cells?

A phagocytic cell that forms the lining of the sinusoids of the liver and is involved in the breakdown of red blood cells.

25

What is the hepatic portal circulation? (4 steps)

Portal vein > Liver (sinusfoids) > hepatic veins > inferior vena cava

26

1. Aoritic arch 2. Brachiocephalic 3. Right common carotid 4. Right subclavian 5. Left common carotid 6. Left subclavian

Q image thumb

Go back and study the damn picture more.

27

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Go back and look at the picture more.

28

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Go back and study the picture.

29

Q image thumb

You know you should study the picture more.