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Anatomy and Physiology 2 > Exam 3 > Flashcards

Exam 3 Flashcards

1
Q

Heart Tissue, inferior to exterior

A

Endocardium, myocardium, epicardium, pericardium

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2
Q

What is the epicardium same as?

A

The visceral layer of the serous pericardium

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3
Q

Pericardium parts

A

Fibrous, Serous (Parietal/Visceral)

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4
Q

Pectinate Muscles

A

Act like rugae- folds so heart can expand

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5
Q

Fossa Ovalis

A

Depression in interatrial septum, remnant of foramen ovale from fetus

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6
Q

Cristae terminalis

A

Where veins empty into R. Atrium

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7
Q

Coronary Sinus empties into

A

R. Atrium

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8
Q

Vessels that supply heart

A

R. Coronary Artery, Anterior Interventricular Artery

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9
Q

Systole

A

Contracting/emptying

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10
Q

Diastole

A

Filling, relaxed

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11
Q

Lub sound

A

Ventricular systole, closing of tri and bi cuspid valves

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12
Q

Dub sound

A

Ventricular diastole, closing semilunar valves

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13
Q

Avg. BPM

A

70-80 BPM

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14
Q

Nodes that control heartrate

A

SA node and AV node

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15
Q

SA node

A

Pacemaker. 80-100 BPM. In Right Atrium

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16
Q

AV node

A

Lowers by 40-50 BPM. R. Atrium

17
Q

Intercalated discs

A

Like nodes of ranvier, allows action potential to move quickly

18
Q

Vagus Nerve

A

Parasympathetic activation of heart

19
Q

Sympathetic of heart

A

Fight/flight, shuts AV node down

20
Q

Purkinje Fibers

A

Enervate valves

21
Q

Bundle of His

A

Transmits action potential from atria, interventricular septum, to ventricular muscles

22
Q

EDV

A

End Diastole Volume. Amount of blood in each ventricle at the end of ventricular diastole

23
Q

ESV

A

End systolic volume. Amount of blood in each ventricle at the end of ventricular systole

24
Q

Strove volume

A

EDV-ESV, the amount of blood pumped from each ventricle in a single beat

25
Q

Ejection fraction

A

The percentage of EDV represented by SV

Anatomy and Physiology 2 (1 decks)

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