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1

term for the flow of blood through a tissue or an organ

perfusion

2

where is blood flow the slowest?

capillaries

3

where is blood flow the fastest?

aorta

4

the formation of more blood vessles

angiogenesis

5

the major local factor causing dilation of arterioles

Nitric oxide (NO)

6

vasodilation

the dilation and relaxation of blood pressure

7

circulatory shock

Any condition in which blood vessels are inadequately filled and blood cannot circulate normally

8

Hypovolemic shock

results from large-scale blood loss

9

Vascular shock

results from extreme vasodilation and decreased peripheral resistance

10

Cardiogenic shock

results when an inefficient heart cannot sustain adequate circulation

11

what does long term autoregulation of tissue perfusion depend on?

angiogenesis

12

how much can muscle blood flow increase by during physical activity?

10x

13

what can a MAP in the brain below 60 mm Hg cause?

syncope

14

what is syncope?

fainting

15

what can a MAP in the brain above 160 cause?

edema

16

what goes on in the heart during ventricular systole?

Coronary vessels are compressed
Myocardial blood flow ceases
Stored myoglobin supplies sufficient oxygen

17

what happens to the left over fluid that is not returned to the capillary?

it will be drained by the lymphatic system

18

5 parts of the Aorta

Ascending Aorta
Aortic Arch
Descending Aorta
Abdominal Aorta
Celiac Trunk

19

largest artery of the body

aorta

20

what supplies 80% of the brains blood

the internal carotids

21

5 main veins of the forearm

Radial
Ulnar
Basilic
Cephalic
Median Antebrachial

22

3 veins of the upper arm

Basilic
Brachial
Cephalic

23

2 deep veins of the lower leg

Anterior Tibial Vein
Posterior Tibial Vein

24

2 superficial veins of the lower leg

Small saphenous vein
Great saphenous vein

25

what do the internal and external iliac veins unite to form?

Common iliac Vein

26

2 types of short-term auto regulation of tissue perfusion

metabolic control
myogenic control

27

how does metabolic control work?

by making changes to the chemical environment

28

how does myogenic control work?

by making changes in muscles tone of the arterioles

29

The Frank Starling Law

The greater the stretch of the cardiac muscle cell, the greater the force of contraction.

30

why is blood flow through capillaries slow?

because of low pressure gradient along the blood vessel