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gen. Anat > week 10- heart > Flashcards

week 10- heart Flashcards

1
Q

Purpose of right side of heart

A

pushes blood into lungs

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2
Q

purpose of left side of heart

A

pushes blood to body

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3
Q

Where will blood back up if right side fails?

A

back up in body, lead too peripheral edema

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4
Q

Where will blood back up if left side fails?

A

blood backs up in the lungs

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5
Q

autorhythmic

A

it does not
require nervous system stimulation to beat
because it generates its own electrical signals
(action potentials) to generate a heart beat

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6
Q

“conduction system” of the heart?

A

coordinates the heartbeat
-composed of an internal pacemaker and nervelike
conduction pathways through myocardium

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7
Q

How does the heart actually pump?

A

both Atriums contract and send blood to ventricles, then both ventricles send it through body

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8
Q

Describe what is occurring in atria
and ventricles during the cardiac cycle.

A

RA- receives blood from S/I VC
LA-receives blood from pulmonary veins
RV-receives blood from RA through AV valve-semds to pulmonary trunk
LV-receives blood from LA through bicuspid valve - sends out aorta

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9
Q

purpose of the heart valves

A

prevent backwards flow of blood

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10
Q

Atrioventricular valve

A

tricuspid and bicuspid valves

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11
Q

semilunar valve

A

-aortic and pulmonary valves
-Allow blood to exit ventricles and enter aorta
or pulmonary trunk

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12
Q

cardiac tissue

A

only found in heart

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13
Q

Coronary circulation

A

Provides cardiac muscle cells with reliable supplies
of oxygen and nutrients

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14
Q

3 layers of heart wall

A

Epicardium
myocardium
endocardium

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15
Q

Epicardium

A

Covers surface of heart—outermost layer

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16
Q

Myocardium

A

responsible for the pumping action of the heart?

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17
Q

endocardium

A

Covering inner surfaces of heart

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18
Q

pericardium

A

fibrous sac that encloses/surrounds the
heart and the great vessels

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19
Q

coronary arteries

A

2 main arteries branch extensively

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20
Q

2 main
coronary arteries?

A

Right and left

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21
Q

What happens if a coronary artery is partially vs completely blocked?

A

P-pain in chest
C-heart attack

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22
Q

sinoatrial (SA) node

A

initiates each heartbeat and determines heart rate

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23
Q

atrioventricular (AV) node

A

electrical gateway to the ventricles

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24
Q

pulmonary circuit

A

carries blood from right side to lungs for gas
exchange and back to heart

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25
Q

systemic circuit

A

blood that flows from heart to body
back to heart)

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26
Q

systolic pressure

A

ventricular contraction

27
Q

diastolic pressure

A

ventricular relaxation

28
Q

s1 and s2

A

1-lubb
2-dupp

29
Q

Blood pressure

A

-generated by the left ventricle
-the force that blood exerts against a vessel wall

30
Q

Order of structures on path of a red blood cell

A

Superior/inferior Vena cavae
right atrium
tricuspid valve
right ventricle
pulmonary valve
pulmonary trunk
pulmonary arteries
lungs
pulmonary veins
left atrium
bicuspid valve
left ventricle
aortic valve
aorta

31
Q

Right atrium

A

1

32
Q

Left atrium

A

2

33
Q

Right ventricle

A

3

34
Q

Left ventricle

A

4

35
Q

Interventriclular septum

A

5

36
Q

Aortic valve

A

6

37
Q

Pulmonary valve

A

7

38
Q

Bicuspid valve

A

8

39
Q

tricuspid valve

A

9

40
Q

Chordae tendinae

A

10

41
Q

papillary muscles

A

11

42
Q

inferior vena cava

A

12

43
Q

Superior vena cava

A

13

44
Q

Aortic arch

A

14

45
Q

Braciocephalic trunk

A

15

46
Q

left common carotid art

A

16

47
Q

left subclavian art

A

17

48
Q

Pulmonary artery

A

18

49
Q

Pulmonary vein

A

19

50
Q

Pulmonary trunk

A

20

51
Q

Left coronary artery

A

21

52
Q

Anterior interventrivular artery

A

22

53
Q

Right coronary artery

A

23

54
Q

Common cartoid art

A

24

55
Q

Internal carotid art

A

25

56
Q

external carotid art

A

26

57
Q

Vertebral artery

A

27

58
Q

Brachiocephalic vein

A

28

59
Q

internal jugular vein

A

29

60
Q

external jugular vein

A

30

61
Q

thoracic aorta

A

31

62
Q

abdominal aorta

A

32

63
Q

inferior vena cava torso

A

33

gen. Anat (13 decks)

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