11 Cardiovascular system vocab Flashcards Preview

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Flashcards in 11 Cardiovascular system vocab Deck (13):
1

atrioventricular bundle (bundle of His)

muscles fibers connecting the atria with the ventricles and transmitting electrical impulses between them

2

atrioventricular node (AV node)

tissue in the wall between the atria. Electrical impulses pass from sa node through the av node and the bundle of his to the ventricles

3

capillary

smallest vessel, materials pass to and from the bloodstream through the thin capillary walls

4

endocardium

inner lining of the heart

5

endothelium

innermost lining of the blood vessels

6

mitral valve

left atrium, left ventricle bicuspid

7

murmur

abnormal swishing sound caused by improper closure of the hear valves

8

myocardium

muscular, middle layer of the heart

9

normal sinus rhythm (NSA)

heart rhythm originating in the sinoatrial node with a resting rate of 60-100 bpm

10

sinoatrial node (pacemaker)

specialized nervous tissue in the right atrium that begins the heartbeat. artificial cardiac pacemaker is an electronic apparatus that stimulates heart muscle that is weak and not functioning

11

pericardium

double-layered membrane surrounding the heart

12

sinoatrial node (SA node)

pacemaker of the heart

13

tricuspid valve (bicuspid)

right atrium and right ventricle

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