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Anatomy > Heart > Flashcards

Heart Flashcards

1
Q

layers of the heart

A

myocardium
epicardium
endocardium

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2
Q

myocardium

A

muscle layer of the heart

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3
Q

epicardium

A

serous pericardium covering the external surface of the heart

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4
Q

endocardium

A

lining of the heart chambers

similar to and continuous with the tunica intima of the blood vessels

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5
Q

diaphragmatic surface of the heart

A

inferior surface that rests on the diaphragm

mostly left ventricle

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6
Q

atrioventricular/coronary sulcus

A

groove around the heart that separates the upper atria from the lower ventricles

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7
Q

posterior interventricular suclus

A

groove that separates the ventricles on the diaphragmatic surface

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8
Q

anterior interventricular surcafe

A

groove that separates the ventricles on the anterior surface

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9
Q

sinus venarum of right atrium

A

smooth wall part of atrium

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10
Q

pectinate muscles of right atrium

A

ridges in atrium that contract for pumping action of chamber

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11
Q

crista terminalis in right atrium

A

ridge that separates sinus venarum and pectinate muscles

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12
Q

conus arteriosus

A

opening of right ventricles to pulmonary trunk

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13
Q

path of right coronary artery

A

arises from right aortic sinus

travels in the anterior aspect of the atrioventricular sulcus to the posterior region of the heart

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14
Q

branches of right coronary artery

A 
anterior atrial
sinuatrial nodal artery
atrioventricular nodal artery
right marginal artery
posterior interventricular artery
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15
Q

path of left coronary artery

A

arises from left aortic sinus
almost immediately splits into 2 branches that travel in the interventricular sulcus and posteriorly in the atrioventricular sulcus, respectively

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16
Q

branches of left coronary artery

A

anterior interventricular artery
circulflex artery
left marginal artery

17
Q

blood supply for wall of right atrium

A

anterior atrial artery

18
Q

blood supply for right atrium and SA node

A

sinuatrial nodal artery

19
Q

blood supply for right atrium, right ventricle, and AV node

A

atrioventricular nodal artery

20
Q

blood supply for wall of right ventricle

A

right marginal artery

21
Q

blood supply for right and left ventricles

A

posterior interventricular artery

anterior interventricular artery

22
Q

blood supply for wall of left ventricle

A

left marginal artery

23
Q

sympathetic innervation of the heart

A

superior, middle, and inferior cardiac nerves (from cervical sympathetic ganglion)

24
Q

parasympathetic innervation of heart

A

vagus nerve

Anatomy (30 decks)

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