Chapter 8-Cardiovascular System Flashcards Preview

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Flashcards in Chapter 8-Cardiovascular System Deck (106)
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autonomic nervous system (ANS)

portion of the nervous system that regulates involuntary actions, such as heart rate, digestion, and peristalsis

1

leaflet

flat, leaf-shaped structure that comprises the valves of the heart and prevents backflow of blood

2

lumen

tubular space or channel within an organ or structure of the body; space within an artery, vein, intestine, or tube

3

regurgitation

backflow or ejecting of contents through an opening

4

sphincter

circular muscle found in a tubular structure or hollow organ that constricts or dilates to regulate passage of substances through its opening

5

vasoconstriction

narrowing of the lumen of a blood vessel that limits blood flow, usually as a result of diseases, medications, or physiological processes

6

vasodilation

widening of the lumen of a blood vessel caused by the realxing of the musces of the vascular walls

7

viscosity

state of being sticky or gummy

8

aneurysm/o

widened blood vesses

9

angi/o

vessel (usually blood or lymph)

10

vascul/o

vessel (usually blood or lymph)

11

aort/o

aorta

12

arteri/o

artery

13

arteriol/o

arteriole

14

artri/o

atrium

15

ather/o

fatty plaque

16

cardi/o

heart

17

coron/o

heart

18

electr/o

electricity

19

embol/o

embolus (plug)

20

hemangi/o

blood vessel

21

my/o

muscle

22

phleb/o

vein

23

ven/o

vein

24

scler/o

hardening; sclera (white of eye)

25

sept/o

septum

26

sphygm/o

pulse

27

sten/o

narrowing; stricture

28

thromb/o

blood clot

29

valv/o

valve