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Anatomy Chapter 28 > chapter 28 > Flashcards

chapter 28 Flashcards

1
Q

major function of transportation for cardiovascular system

A

carries oxygen, nutrients, cell wastes, hormones

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2
Q

location of the heart

A

medial cavity of the thorax (mediastinum)

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3
Q

pericardium

A

enclosure; double walled; 2 parts

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4
Q

fibrous pericardium

A

loose fitting superficial layer; protects heart and anchors it to diaphragm and sternum

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5
Q

serous pericardium

A

2 layers
parietal later
visceral layer

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6
Q

epicardium

A

outermost; visceral layer of serous pericardium

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7
Q

myo means

A

muscle

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8
Q

myocardium

A

middle; thick bundles of cardiac muscles

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9
Q

endocardium

A

thin sheet of endothelium that lines the heart chambers

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10
Q

how many hollow chambers

A

4

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11
Q

how are the chambers broken down

A

2 atria and 2 ventricles
each lined with endocardium

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12
Q

atria

A

superior; receiving chambers

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13
Q

ventricles

A

inferior; discharging chambers, pumps of the heart; thick walled

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14
Q

inter ventricular/ interatrial septum

A

divides the heart longitudinally

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15
Q

how many flows do the 4 valves have

A

1

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16
Q

atrioventricular valves

A

atria to ventricles

17
Q

semulunar valves

A

pulmonary valve
aortic valve

18
Q

right valves

A

tricuspid 3 flaps

19
Q

left valves

A

bicuspid 2 flaps

20
Q

blood supply that oxygenates and nourishes the heart provided by the left and right

A

coronary arteries

21
Q

coronary arteries

A

branch from the base of the aorta and wrap around the heart at the coronary sulcus

22
Q

major branches of the coronary arteries

A

anterior interventicular and circumflex arteries
posterior inter ventricular and marginal arteries

23
Q

sympathetic stimulation

A

accelerator nerves

24
Q

parasympathetic stimulation

A

inhibitory/depressor nerves

25
Q

sinoatrial (SA) node is the

A

pacemaker

26
Q

conduction of the heart has 4 major structure

A

sinoatrial node
atrioventricular node
AV bundle
subendocardial branches

27
Q

p wave

A

represents depolarization of the atria

28
Q

QRS complex

A

represents depolarization of the ventricles and repolarization of the atria

29
Q

T wave

A

represents repolarization of the ventricles

30
Q

U wave

A

a tiny hump at the end of the t wave represents repolarization

31
Q

systolic heart sound

A

(lub) first sound

32
Q

diastolic heart sound

A

(dub) short short sound

Anatomy Chapter 28 (1 decks)

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