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A&p > Chapter 13 > Flashcards

Chapter 13 Flashcards

1
Q

2 layers of the heart

A

Endocardium
Epicardium

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2
Q

Order of electric impulses from the heart

A

SA node
AV node
AV bundle
Small purkinse fibers

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3
Q

Mona

A

Morphine
Oxygen
Nitroglycerin
Aspirin

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4
Q

Heart attack

A

Myocardial infarction

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5
Q

Received oxygen rich blood as it returns from the lungs in pulmonary veins

A

Left atrium

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6
Q

Know as the tricuspid

A

Right atrioventricular

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7
Q

Ventricle with the greatest force

A

Left ventricle

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8
Q

Formed by the wall of the left ventricle

A

Hearts apex

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9
Q

Thin fibrous threads that starch to left and right AV

A

Papillary muscles

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10
Q

Stabilize the valve flaps when the ventricles contract so that the blood force will not push the valves up into the atria

A

Chordae tendineae

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11
Q

Valve located between the left ventricle and the aorta. When the left ventricle relaxes, back pressure closes the aortic valve and prevents the back flow of blood from the aorta to the ventricle

A

Aortic valve

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12
Q

Contraction

A

Systole

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13
Q

A dilated vein that opens into the right atrium near the inferior vena cava

A

Coronary sinus

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14
Q

Main arteries that supply blood to the heart muscle. They encircle the heart like a crown & branch off the aorta

A

Right and left coronary arteries

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15
Q

Contraction of ventricles pumps blood into aorta and pulmonary arteries. Valves must be closed

A

Ventricular systole

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16
Q

Sets the rate of heart contractions
Commonly called the pacemaker

A

Sinoatrial (SA) node

17
Q

Located in the interatrial septum at the bottom of the right atrium

A

Antrioventricular (AV) node

18
Q

Volume of blood ejected from the ventricle with each beat

A

Stroke volume

19
Q

Heart rate of more than 100 bpm

A

Tachycardia

20
Q

Decreases cardiac output by lowering the heart rate

A

Parasympathetic stimulation

21
Q

Used to record the electrical activity of the heart as it functions

A

Electrocardiograph

A&p (19 decks)

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