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MAP > Unit 8 III > Flashcards

Unit 8 III Flashcards

0
Q

What causes the “dub” sound?

A

Semilunar valves closing

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1
Q

What is a pulse?

A

An expansion and recoiling of an artery which can be palpitated

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2
Q

What is stroke volume?

A

EDV-ESV=SV
measure of effectiveness of L ventricle
amnt of blood being ejected from L ventricle

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3
Q

what is the blood vessel that brings blood from the head, neck, and arms into the R atrium?

A

Superior vena cava

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4
Q

When taking a BP the ___ number is on top and the ___ number is on bottom

A

Systolic, diastolic

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5
Q

Name the structures of cardiac conduction in order

A

SA node, AV node, AV bundle, bundle branches, perkinje fibers

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6
Q

The valve between R ventricle and BV leaving the R ventricle is the ____

A

pulmonary semilunar

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7
Q

The valve between the L ventricle and the bv leaving the L ventricle is the ___

A

Aortic semilunar

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8
Q

The body’s entire blood supply is circulated every ___

A

One minute

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9
Q

The pacemaker of the heart is the

A

SA node

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10
Q

What chambers of the heart receive blood from the veins

A

Right atrium, left atrium

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11
Q

The largest artery in the body extends from left ventricle and is called the

A

Aorta

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12
Q

What is the name of a blood vessel that takes oxygenated blood from the lungs to the left atrium

A

Pulmonary vein

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13
Q

What chambers of the heart are known as pumping chambers

A

Right ventricle, Left ventricle

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14
Q

What is the name of a blood vessel that takes deoxygenated blood from the r ventricle to the lungs

A

Pulmonary trunk

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15
Q

Valves are formed from the innermost layer of the heart called the

A

Endocardium

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16
Q

The “lub” sound is caused by

A

AV valves closing

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17
Q

Cardiac output is

A

SV x HR = CO

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18
Q

Arteries

A

Carry blood away from the heart

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19
Q

Veins

A

Carry blood toward the heart

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20
Q

Arterioles

A

Smaller, carry toward capillaries

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21
Q

Venules

A

Smaller, carry away from capillaries

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22
Q

What circulation route takes deoxygenated blood to the lungs where it can pick up oxygen?

A

pulmonary

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23
Q

Systole

A

Contraction

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24
Q

Diastole

A

Relaxation

25
Q

Name of the blood vessel that brings venous blood from abdomen and legs into R atrium

A

Inferior vena cava

26
Q

Felt on the upper surface of the foot

A

Dorsal pedis

27
Q

Felt in the antecubital space

28
Q

Felt in the groin

29
Q

Felt on the neck

A

Common carotid

30
Q

Felt on lateral side of the wrist

31
Q

Felt on area behind knee

32
Q

Initiates action potential

33
Q

Slight pause for atrial contraction

34
Q

Conduction nerve impulse

35
Q

Bifurcation to L and R ventricular walls

A

L/R bundle branches

36
Q

Spreads action potential superior lay throughout the ventricular walls

A

Purkinje fibers

37
Q

Heart rate is

A

The number of cardiac cycles per minute

38
Q

Tunica interna

A

Smooth inner lining made up of endothelium

39
Q

Tunica media

A

Middle layer composed of smooth muscle tissue

40
Q

Tunica externa

A

Outermost, fibrous connective tissue which provides flexibility and strength

41
Q

what is an atria?

A

Collecting chamber

42
Q

What are ventricles?

A

Pumping chambers

43
Q

AV valves:

A

Between atria and ventricle

44
Q

SL valves:

A

Between ventricle and major artery

45
Q

Functions of the heart

A 
Transports O2 and CO2
Removes waste
Thermoregulation
Immunological
Clotting
46
Q

Epicardium

A

Outermost layer

47
Q

Vena Cava

A

Blood towards right atrium

48
Q

Pulmonary

A

R ventricle to the lungs

49
Q

Aorta

A

L ventricle to body

50
Q

Atrial septum

A

Wall between atria

51
Q

Ventricular septum

A

Wall between ventricles

52
Q

Chordae tendinae

A

Strings anchoring valves prevents inversion

53
Q

Papillary muscles

A

Chordae tendinae attached, muscular projection

54
Q

mid to late diastole:

A

Atria contract, ventricles fill

AV valves open, SL valves close

55
Q

Ventricular systole

A

Ventricles contract, atria relax

AV valves close, SL open

56
Q

Early diastole

A

AV remains open, SL shut

57
Q

End Diastolic Volume/ EDV

A

Amnt of blood entering ventricle while filling

58
Q

End of systolic volume:

A

Amnt of blood left in ventricle after contracting

59
Q

Stroke volume/SV

A

amnt of blood ejected from L ventricle after each beat

60
Q

normal HR

A

60-100 beats per minute

61
Q

Lumen

A

Hollow center section, blood flows

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