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Vet Term > Cardiovascular System - Exam 3 > Flashcards

Cardiovascular System - Exam 3 Flashcards

1
Q

definition of systole

A

contraction & emptying of heart

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2
Q

definition of diastole

A

relaxation & filling of heart

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3
Q

definition of bradycardia

A

decrease in heart rate

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4
Q

definition of tachycardia

A

increase in heart rate

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5
Q

definition of cardiac output

A

total volume of blood ejected by heart per minute

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6
Q

4 chambers include

A

L & R atriums and L & R ventricles

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7
Q

atrioventricular valves

A

“lub”, AV valves, separate atria & ventricles

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8
Q

AV valve function

A

prevent backflow of blood during systole, open vs closed due to pressure changes

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9
Q

2 types of AV valves

A

mitral & tricuspid

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10
Q

mitral valve

A

left AV valve

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11
Q

tricuspid valve

A

right AV valve

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12
Q

semilunar valves

A

“dub”, between ventricles & great arteries

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13
Q

semilunar valve function

A

prevent backflow of blood from aorta & pulmonary arteries during diastole

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14
Q

2 types of semilunar valves

A

aortic & pulmonary

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15
Q

aortic valve

A

between LV & aorta

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16
Q

pulmonary valve

A

between RV & pulmonary artery

17
Q

3 types of cardiac cells include:

A

myocardium, pacemaker, conduction

18
Q

working myocardial cells / myocardium

A

contraction & impulse conduction

19
Q

pacemaker cells

A

automatic rhythmical electrical discharge

20
Q

conduction cells

A

conduct action potentials providing excitatory system that controls rhythmical beating

21
Q

SA node

A

sinoatrial node, normal pacemaker

22
Q

sinus node

A

small strip of specialized cardiac muscle cells

23
Q

AV node

A

delays impulse conduction from atria to ventricles

24
Q

Purkinje fibers

A

lead the AV node impulse through the AV bundle into the ventricles

25
Q

AV bundle

A

Bundle of His, allows only forward conduction, L & R branches under endocardium

26
Q

AV valves attached to the papillary muscles by the

A

chorda tendinea

27
Q

chorda tendinea function

A

pull veins of valves inward toward ventricle during systole

Vet Term (12 decks)

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