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Human Bio > Heart > Flashcards

Heart Flashcards

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Biology 101 flashcards
1
Q

Mediastinum

A

location of heart

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2
Q

Systematic Circulation

A

responsible for “whole” body circulation

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3
Q

Pulmonary Circulation

A

the heart transports “dirty blood” to the lungs to re-oxygenate the blood

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4
Q

Regurgitation

A

back flow of blood into chambers

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5
Q

Stenosis

A

narrowing of valve

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6
Q

Insufficiency

A

valve doesn’t close all the way

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7
Q

Untreated Strep Throat

A

rheumatic fever which harms the mitral (bicuspid) and aortic valve

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8
Q

Right Coronary Artery

A

supplies blood to right atrium

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9
Q

Marginal Branch

A

supplies blood to right ventricle

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10
Q

Left Coronary Artery

A

supplies blood to left atria and left ventricle

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11
Q

LAD or “widow maker”

A

supplies blood to both ventricles

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12
Q

Small Cardiac Vein

A

take deoxygenated blood from right atria and ventricle

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13
Q

Right Anterior Cardiac Vein

A

right ventricle

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14
Q

Middle Cardiac Vein

A

from right and left ventricle

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15
Q

Great Cardiac Vein

A

drain left atrium, right/left ventricle

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16
Q

Sinoatrial Node

A

generates the hearts rhythm

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17
Q

Bachman Bundles

A

carries impulses to left atrium

18
Q

Atrioventricular Node

A

help carry impulse to Bundle of His

19
Q

Bundle of His/ Purkinje Fibers

A

carries impulse to ventricles

20
Q

P wave

A

atria contracting

21
Q

QRS wave

A

ventricular contraction

22
Q

S-T interval

A

end of contraction

23
Q

T wave

A

ventricular relaxation, getting ready for next contraction

24
Q

Tachycardia

A

hear beat per min over 100

25
Q

Bradycardia

A

beats less than 40 per min

26
Q

systolic

A

pressure being exerted on your artery wall

27
Q

diastolic

A

pressure on artery wall during relaxation

28
Q

Normal BP

A

systolic: less than 120
diastolic: less than 80

29
Q

Elevated BP

A

120-129, more than 80

30
Q

Crisis BP

A

over 180, 120 and higher

31
Q

Stage 1 hypertension

A

130-139, 80-89

32
Q

Stage 2 hypertension

A

140 or higher, 90 or higher

33
Q

Blood Vessels

A

transport O2, eliminate CO2

34
Q

Tunica Externa

A

contains nerves, structure and support

35
Q

Tunica Media

A

contains elastic fibers to widen when needed, helps to keep blood going in one direction

36
Q

Tunica Interna

A

made up of simple squamous epithelium helps regulate blood pressure, helps with no blood clotting

37
Q

Arterioles

A

same 3 layers just not as big in diameter, primarily regulates blood pressure

38
Q

Capillaries

A

smallest in diameter, gas exchange O2 in CO2 out, the higher the metabolism of the organ the more capillaries there are

39
Q

venuoles

A

same layers as arteries but diameter is less

40
Q

Veins

A

transport blood under low pressure, thinner walls, less elasticity

Human Bio (21 decks)

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