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BIOL 140 > The Heart: CHP 7 > Flashcards

The Heart: CHP 7 Flashcards

1
Q

How many pumps does the heart have?

A

2

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2
Q

What is the function of the right side of the heart?

A

Sending oxygen-poor blood to the lungs

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3
Q

What is the function of the left side of the heart?

A

Sending oxygen-rich blood to the rest of the body

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4
Q

What are the two types of heart valves?

A

Atrioventricular and semilunar

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5
Q

What is the location of the atrioventricular valve?

A

Separating atrium from ventricle

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6
Q

What is the location of the semilunar valve?

A

Separating ventricle from major artery

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7
Q

What are the two atrioventricular valves?

A

Tricuspid: right side
Bicuspid: left side

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8
Q

What are the two semilunar valves?

A

Pulmonic: right
Aortic: left

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9
Q

What is cardiac muscle tissue called?

A

myocardium

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10
Q

Describe the atrial wall.

A

Thin walled
Collects and pumps blood short distances

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11
Q

Describe the left ventricle wall.

A

Thicket wall so that it can pump blood throughout the entire body

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12
Q

Describe the right ventricle wall.

A

Middle thickness
Only pumps blood to the lungs

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13
Q

Describe the location of the heart.

A

Rests on diaphragm near thoracic cavity midline
Enclosed in mediastinum
Slightly left of body’s midline

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14
Q

The outer covering of the heart is called

A

Pericardium

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15
Q

What is cardio cerebral resuscitation?

A

Method of resuscitating with only chest compressions

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16
Q

What is myocarditis?

A

Heart inflammation

17
Q

What is a coronary bypass?

A

Treatment for a blocked coronary artery

18
Q

What is the purpose of the pulmonary circuit?

A

To oxygenate blood received from the tissues

19
Q

Electrical excitation for heart contraction begins in…

A

SA Node

20
Q

List the order through which electrical impulses pass through the cardiac conduction system.

A

SA Node
AV node
AV bundle (his)
Right and left bundle branches
Purkinje fibers

21
Q

Where is the SA node located?

A

Right atrium

22
Q

Where is the AV node located?

A

Lower right corner of the right atrium

23
Q

Where is the bundle of his located?

A

In the septum

24
Q

Where are the right and left bundle branches located?

A

Down the septum towards the ventricles

25
Q

Where are the Purkinje fibers located?

A

On the walls of the right and left ventricles

26
Q

What are the components of EKG?

A

P wave
PR interval
QRS complex
ST segment
T wave

27
Q

Define ventricular repolarization.

A

Relaxation of the ventricles

28
Q

Define ventricular depolarization.

A

Contraction of the ventricles

BIOL 140 (11 decks)

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