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Anatomy Bio 220 > heart > Flashcards

heart Flashcards

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Biology 101 flashcards
1
Q

right side

A

receives oxygen-poor blood and pumps it to lungs (pulmonary circuit)

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2
Q

left side

A

receives oxygenated blood and pumps it throughout body (systemic circuit)

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3
Q

2 receiving chambers

A

left & right atrium

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4
Q

2 pumping chambers

A

left & right ventricle

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5
Q

pericardium

A

triple-layered sac that encloses heart

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6
Q

fibrous pericardium

A

outer sac, strong layer of CT holds heart in place and keeps it from overfilling with bloods

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7
Q

serous pericardium

A

deep to the fibrous pericardium, formed from 2 layers (parietal & visceral layer)

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8
Q

layers of heart wall

A

epicardium, myocardium, endocardium

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9
Q

epicardium

A

superficial, outer

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10
Q

myocardium

A

thickest, middle layer, bulk of the heart containing cardiac and smooth muscles

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11
Q

endocardium

A

deep layer (inside, inner layer), lines heart chambers & valves

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12
Q

superior vena cava

A

drains all body regions superior to the diaphragm

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13
Q

aorta

A

largest artery of body

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14
Q

pulmonary trunk

A

carries blood from heart to lungs for oxygenation

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15
Q

inferior vena cava

A

returns blood to the heart form all areas of body inferior to the diaphragm

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16
Q

heart chambers- internal division

A

between atria and ventricles

17
Q

heart chambers- external division

A

boundaries between the four chambers marked by grooves (coronary sulcus, anterior & posterior inter ventricular sulci)

18
Q

right atrium

A

receives deoxygenated blood from systemic circuit, opens into right ventricle through tricuspid valve

19
Q

pectinate muscles

A

cardiac (rough) and smooth muscles of right atrium

20
Q

right ventricle

A

receives blood from right atrium and pumps to pulmonary circuit via pulmonary trunk

21
Q

pulmonary semilunar valve

A

opening between right ventricle and pulmonary trunk

22
Q

left atrium

A

receives oxygenated blood returning from lungs, pumps blood through bicuspid valve to left ventricle

23
Q

left ventricle

A

similar to right ventricle, but walls are three times thicker and larger, pumps blood through aortic semilunar valve to aorta

24
Q

atrioventricular (AV) valves

A

between atria and ventricles

Anatomy Bio 220 (34 decks)

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