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Anatomy Y1 > Location and structure of heart > Flashcards

Location and structure of heart Flashcards

1
Q

Where is the superior mediastinum found?

A

Above the sternal angle

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2
Q

What is the inferior mediastinum split into?

A

Anterior, posterior and middle

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3
Q

Which part of the inferior mediastinum is the heart found in?

A

Middle

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4
Q

Where does the right border of the heart run?

A

t3-6

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5
Q

what is the fibrous pericardium?

A

tough outer layer which attaches to the diaphragm

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6
Q

what are the 2 layers of the serous pericardium?

A

parietal and visceral

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7
Q

what does the parietal layer of the serous pericardium line?

A

inner surface of the fibrous pericardium

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8
Q

what does the visceral layer of the SP cover?

A

outer surface of the heart

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9
Q

what is the epicardium?

A

visceral layer of SP

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10
Q

what is the myocardium?

A

cardiac muscle wall

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11
Q

what is the endocardium?

A

thin endothelial layer lining internal surfaces of the heart

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12
Q

what heart chambers contain deoxygenated blood?

A

right atrium and right ventricle

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13
Q

what heart chambers contain oxygenated blood?

A

left atrium and left ventricle

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14
Q

which chambers are at the front of the thorax?

A

right

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15
Q

features of the right atrium

A

sinus venarum
pectinate muscles
crista terminalis (SA node is above this)
fossa ovalis (remains of foetal foramen ovale)

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16
Q

features of right ventricle

A

trabeculae carnae
papillary muscles
chordae tendineae
conus arteriosis

17
Q

what does the chordae tendineae do?

A

anchors the valve leaflets

18
Q

how does the left atrium differ from the right?

A

relatively featureless
no sinus venarum
no crista terminalis

19
Q

how can you tell the difference between the left and right ventricle?

A

thick muscular wall
no conus arteriosis

20
Q

what are the names of the valves, and, what do they articulate with?

A

tricuspid - right atrium to right ventricle
mitral - left atrium to left ventricle
pulmonary - right ventricle to pulmonary trunk
aortic - left ventricle to aorta

21
Q

which valve only has 2 cusps?

A

mitral

Anatomy Y1 (27 decks)

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