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PSIO 202 1 The Heart > Lecture 1: Heart Intro > Flashcards

Lecture 1: Heart Intro Flashcards

1
Q

Systemic circuit

A

Blood to all organs (also different parts of lungs and heart wall)

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2
Q

Pulmonary Circut Route

A

Gets blood that ciruclated through body and gave up Oxygen
Blood comes in with CO2into pulmonary trunk–> R&L pulmonary arteries blood to air sacs and lungs
in lungs give up CO2 and get oxygen
Pulmonary veins to left heart

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3
Q

Systemic Circuit Route

A

Left vent to Aorta
blood leaves Aorta Aortic arch–> head neck, upper limbs
all body once deoxygenated, goes to right heart by superior and inferior vena cava (veins)

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4
Q

Aorta

A

Largest artery in the body

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5
Q

left ventricle

A

source of force
blood from here goes to aorta then rest of body
More muscles
ends blood out via aorta

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6
Q

venous blood

A

deoxygenated blood

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7
Q

Systemic Veins and arteries

A

Veins carry venous

Arteries carry atrial

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8
Q

Pulmonary Veins and arteries

A

Veins carry atrialArteries carry venous

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9
Q

6 major systems for blood

A 
brain
skin
heart
kidneys
muscles 
GI system
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10
Q

Right Ventricle

A

sends blood to pulmonary circulation

Sends blood out via pulmonary trunk

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11
Q

Left atrium

A

blood leaving pulmonary circut (aterial) goes here

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12
Q

Right side

A

3 vessels, tricuspid valve

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13
Q

Left Side

A

4 pulmonary veins, bicuspid valve

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14
Q

Cardiac Output

A

amount of blood pumped/unit time
L/min
Equal for both sides

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15
Q

Resting CO

A

5 L/min (almost all of the blood)

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16
Q

Maximum CO

A

30 L/min

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17
Q

The atria

A

recieve the blood first

18
Q

Semilunar Valves

A

between LV and aorta and RV and pulmonary trunk

19
Q

Atrioventricular Valves

A 
between atria and ventricles
no backflow
flaps with chrodae tendinae       
Prevent prolapse (leakage back into atria)
attach to heart walls
papillary muscles anchor cusps
20
Q

Left AV valve

A

bicuspid/mitral

seperate left atrium and left vent

21
Q

Right AV valve

A

tricuspid

separate right atrium and ventricle

22
Q

Semilunar Valves

A

valves open/close in response to pressure diffs
aortic pressure is highest of arteries
pressure in ventricle must be greater for aortic valve to open

23
Q

Right Semilunar Valve

A

Pulmonary semilunar valve

separate right ventricle from main pulmonary trunk

24
Q

Left Semilunar

A

Aortic Semilunar

Separate left ventricle from aorta

25
Q

Coronary Circulation

A

blood supply to heart

26
Q

Collateral Routes for CC

A

anastomoses
make sure heart get bloods even if major vessles are blocked
multiple routes/branching

27
Q

Supply for heart tissue comes from

A

Right and Left Coronary arteries

both originate on ascending aorta

28
Q

Waste from CC is picked up…

A

from capillary vessels. It is then sent out through veins

29
Q

Right Coronary Artery

A

supplies SA node, AV node, right atrium, interventricular septum, right and left ventricles
Marginal Branch
Posterior Interventricular branch

30
Q

Left Coronary Artery

A

supplies SA node, part of left artery, interventrical septum, ventricles
circumflex branch
anterior
interventricular branch

31
Q

Marginal Branch

A

right coronary artery

supplies anterior parts of right ventricle

32
Q

Posterior Interventricular branch

A

Right Coronary artery supplies posterior parts of both ventricles

33
Q

circumflex branch

A

left coronary artery supplies left atrium and posterior left ventricle

34
Q

anterior interventricular branch

A

left coronary artery

supplies anterior parts of both ventricles

35
Q

Great Cardiac Venin

A

Coronary Circulation

drains anterior heart

36
Q

Middle Cardiac Vein

A

Coronary Circulation

drains posterior heart

37
Q

Coronary Sinus

A

Coronary Circulation
very large
drains middle cardiac and great cardiac veins
drains INTO right atrium

38
Q

Pulmonary circuit

A

Blood to lungs, gas exchange, back to heart

39
Q

arteries

A

carry blood away from heart

40
Q

Veins

A

carry blood to heart

41
Q

capillaries

A

exchange waste, nutrients, and gasses with intestinal fluids?

PSIO 202 1 The Heart (8 decks)

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