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Lab Final Reproductive system flash cards > Heart > Flashcards

Heart Flashcards

Heart

1
Q

Major function of the cardiovascular system

A

Transportation

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2
Q

Delivery route is through the heart…

A

vessels

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3
Q

Transport medium of the heart is through

A

blood

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4
Q

outermost loose fitting, superficial part of the sac

A

fibrous pericardium

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5
Q

What is the double sac wall that encloses the heart

A

pericardium

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6
Q

What are the roles of the fibrous pericaridum?

A

Protects the heart, anchors the heart to surrounding structures, prevents overfilling the heart with blood.

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7
Q

Deep to the fibrous pericardium

A

serous pericardium

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8
Q

lines the internal surface of the fibrous pericardium

A

pariteal layer

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9
Q

At the base of the heart the parietal layer reflect back covering the external surface of the heart

A

Visecreal layer or epipericardium

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10
Q

What two layers make up the serous pericardium?

A

Partieal layer and visecreal layer

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11
Q

What are the three layers that make up the walls of the heart

A

epicardium, myocardium, endocardium

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12
Q

The outer layer, which is also the visceral pericardium“upon the heart”

A

epicardium

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13
Q

Known as the “heart muscle”

A

Myocardium

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14
Q

Middle and thickest layer composed mainly of cardiac muscle

A

Myocardium

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15
Q

Known as the “inside of the heart”

A

Endocardium

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16
Q

Inner lining that covers the heart valves and is continuous with the inner lining of the great vessels

A

Endocardium

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17
Q

Continuous with the endothelial lining of blood vessels

A

Endocardium

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18
Q

How many chambers are in the heart

A

4

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19
Q

How are the four chambers of the heart divided?

A

2 superior atria and 2 inferior ventricles

20
Q

divides the atria chambers

A

Interatrial septum

21
Q

divides the ventricle chambers

A

interventricle septum

22
Q

How are chambers of the heart divided ?

A

Longitudinally by a septum

23
Q

eceiving chambers and ineffective pumps

A

Atria

24
Q

Thick wall discharging chambers of the heart

A

ventricles

25
Q

Two visible grooves on the surface indicating boundaries of chambers and carry blood vessels

A

cornary sulcus and the anterior interventricle sulcus

26
Q

encircles junction of the atria and ventricles like a crown

A

cornary sulcus

27
Q

what seperates the right and left ventricles

A

anterior interventricle sulcus

28
Q

What are the four heart valves

A

Atrioventricular valves, semilunar valves, Tricuspid valve, mitral valve.

29
Q

Valve between atrium and ventricle

A

Atrioventricular valve

30
Q

Between the ventricle and great vessel

A

semilunar valve

31
Q

right AV valve

A

Tricuspid valve

32
Q

left AV valve

A

mitral valve `

33
Q

results of depolarization waves traveling through the heart

A

heart contraction

34
Q

The ability of the heart to beat is

A

insintrict

35
Q

true or false: the heart beat does not depend on impulses from the nervous system

A

true

36
Q

ensures the heart muscle depolarizes in an orderly and sequential manner

A

cardiac pacemaker cells

37
Q

right atrium inferior to vena cava

A

SA Node

38
Q

lower atrial septum at the junction of the A and

A

AV Node

39
Q

in the interventricular septum

A

AV bundle

40
Q

generates impulses

A

SA Node

41
Q

The node in which the impulses pause

A

AV node

42
Q

conducts impulses to the bundle branches

A

AV Bundle

43
Q

conduct the impulses through the interventrical septum

A

Bundle branches

44
Q

depolarizes the contractilecells of both ventricles

A

subendo cardial conducting network

45
Q

a region between 2 waves

A

segment

46
Q

a region that contains a segment and one or more waves

A

interval

Lab Final Reproductive system flash cards (9 decks)

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