15 Flashcards

(50 cards)

0
Q

This ventricle pumps blood to the lungs

A

Right

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1
Q

Arteries and veins arise from this of the heart

A

Base

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2
Q

Scientific name for a heart attack

A

Myocardial infraction

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3
Q

The P wave of the electrocardiogram represents this event

A

Atrial depolarization then followed by stole

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4
Q

The first heart sound (Lubbock) is caused by closure of these valves

A

AV

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5
Q

Name the parts of the pericardium

A

2 main parts ;

1) fibrous
2) serous

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6
Q

The outermost layer of the pericardium

A

Fibrous

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7
Q

The layer of the pericardium that is adjacent to the heart muscle

A

Visceral

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8
Q

When the arena are systole the ventricles are in _____.

A

Diastole

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9
Q

When the ventricles are in systole the av valves are (opened/closed).

A

Closed

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10
Q

The man in function of the heart valves

A

Prevent back flow of blood

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11
Q

The “T” wave of the ECG indicates this event

A

ventricular depolarization

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12
Q

Venous blood (w/o oxygen) from the body returns to this chamber

A

Right Atrium

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13
Q

The coronary artists take blood to this location

A

Heart muscle itself

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14
Q

Hardening of the walls or arteries from smooth muscle proliferion and cholesterol deposit

A

Atherosclerosis

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15
Q

Condition caused by reduced loos flow to the myocardium

A

Myocardial ischemia

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16
Q

Irregular heart rhythm

A

Arrhythmia

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17
Q

Opening in the septum between the atria in a fetus

A

Foramen ovale

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18
Q

Narrowing of a valve opening by scar issue

A

Stenosis

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19
Q

Different areas of the heart beating independently

A

Fibrillation

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20
Q

Narrowing of the coronary artieries reducing blood flow to the heart; has a number of causes and is the leading cause of death in the U.S

A

(CAD) coronary artery diease

21
Q

The term “epicardium” refers to this structure

A

Outermost layer of the heart wall

22
Q

Circulation of blood through the heart muscle is supplied by the ___ circulation

23
Q

Cardio muscle is know as____.

24
Chamber with the thickest wall of the heart
Left ventricles
25
The heartbeat originates in this mass of tissues
SA node
26
Structure whose job is sequence the ventricular contractions with the atrial contractions
AV node
27
The electrical conduction system in the outer walls of the ventricles
Conduction myofiber (Purkinje fibers)
28
Location of the S-A node of the heart
Right Atrium
29
The QRS spike represents this event
Ventricle contraction
30
The second heart sound (dupp) is caused by this
SL valves closing
31
Heart rate is monitored and regulated by this structure
Cardiovascular center of medulla
32
This nerve decrease heart rate
Vagus (CN X)
33
The heart speeds up when we stand up quickly due to receptors here that detect blood pressure changes
Carotid artery
34
Explain the contractions of the chambers in the cardiac cycle
Atria contract that the ventricles contract
35
Coronary arteries branch off from ____.
Aorta
36
The action of ____ causes audible heart sounds
Valves
37
What causes heart murmurs
Incomplete closing of a valve
38
The period of relaxation in the cardiac cycle
Diastole
39
A hear is stretched just before contraction will contract stronger according to this law
Frank - starling
40
The contraction phase of the heart
Stystole
41
The "good" chemicals that take cholesterol to the liver are
High- density (HOL's) (lipoprotein)
42
What cause the semilunar valves to close
Pressure in the ventricles is dropping
43
The volume of blood ejected from by each ventricle with one contraction of the heart
Stroke volume (70 ml)
44
The term describing heart chamber contraction is _____.
Systole
45
Name several chemicals which would act to slow the heart rate
Increased levels of K+ or Na+
46
The term describing heart chamber relaxation is _____.
Diastole
47
Chest pain caused from ischemia
Angina pectoris
48
Inflammation of the heart covering
Pericarditis
49
The amount of blood ejected by each ventricle each minute
Cardiac output