Introduction to the Heart and Pericardium Flashcards

1
Q

Where is the phrenic nerve attached to in the heart

A

The phrenic nerve is adhered to the lateral sides of the pericardial sac

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2
Q

Where is the oblique pericardial sinus

A

Pericardial cul-de-sac behind the heart which opens into the pericardial space proper inferiorly

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3
Q

Where is the transverse pericardial sinus

A

Posterior to the pulmonary trunk and proximal part of the aorta

In front of the SVC

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4
Q

Describe the structure of the aortic valve

A

There are three cusps that work to pump the blood; the valve has two small holes that provide the blood supply for coronary arteries

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5
Q

Left and right coronary arteries

A
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6
Q

Anterior interventricular branch/Left Anterior Descending (LAD) artery

A
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7
Q

Left Marginal Branch

A
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8
Q

Diagonal Branch

A
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9
Q

Fossa ovalis

A

Remnant of embryology; depressed structure over the right interatrial septum

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10
Q

Cardiac Tamponade

A

There is a leak in the coronary arteries that begin to spill blood. This blood leaks and remains in the pericardium; increasing with every heart beat

Eventually, the heart’s space is taken up and it just gives up

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11
Q

Which coronary artery is most likely to be blocked

A

Anterior interventicular branch (LAD)

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12
Q

Moderator Band

A

Thick band of cardiac muscle found in the right ventricle of the heart

Right AV passes in it

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13
Q

Papillary Muscles of the heart

A

Muscles in the ventricles that attach to the cusps of the AV valves

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14
Q

Pectinate Muscles of the heart

A

“teeth of a comb” shaped parallel muscular columns that are present on the inner wall of the right and left atria

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15
Q

Chordae Tendinae

A

Thin fibrous cords that extend from the cusps of the AV Valves to the papillary muscles within the ventricles

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