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DAT Circulatory System Cheat Sheet Flashcards

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Biology 101 flashcards
1
Q

How many atria in a chamber

A

2

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2
Q

how many ventricles in a chamber

A

2

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3
Q

Connects right
atria/ventricle

A

tricuspid

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4
Q

Connects left
atria/ventricle

A

Bicuspid/ Mitral:

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5
Q

Connects right
ventricle to pulmonary artery

A

pulmonary valve

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6
Q

Connects left ventricle to
aorta

A

aortic valve

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7
Q

Atrioventricular valves, what are the 2

A

tricuspid, bicuspid/ mitral

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8
Q

the two semilunar valves

A

pulmonary and aortic

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9
Q

cardiac cycle is regulated by…

A

autonomic NS

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10
Q

step 1 of cardiac cycle

A

Heart is at rest, awaiting
action potential

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11
Q

steps 2-3 of cardiac cycle

A

Sinoatrial (SA/
pacemaker) node in upper right
atrium initiates contraction of
atria and stimulate
atrioventricular (AV) node

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12
Q

Sinoatrial (SA/
pacemaker) node in upper right
atrium initiates contraction of…

A

atria

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13
Q

what does contraction of atria stimulate

A

atrioventricular node

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14
Q

step 4 of cardiac cycle

A

AV node passes impulse
to Bundle of His between
ventricles

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15
Q

AV node passes impulse to what..

A

Bundle of His

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16
Q

step 5-6 of cardiac cycle

A

5-6: Bundle of His passes
signal to Purkinje fibers =
contraction of both ventricles

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17
Q

where does bundle of his pass signal to

A

purknje fibers

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18
Q

what does the signal received by purknje fibers initiate

A

contraction of both ventricles

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19
Q

Contraction of atria/
ventricles

A

systole

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20
Q

Relaxation of atria/
ventricles

A

diastole

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21
Q

blood types are classified by…

A

presence of
antigen on erythrocyte
membrane

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22
Q

Antibodies
attack blood cells with
foreign antigens, forming
clumps

A

Agglutination:

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23
Q

what blood type is the universal recipient because these individuals do not produce antibodies
against any blood type

A

blood type AB+

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24
Q

universal donor

A

O-

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25
Q

+/- part of blood type is called…

A

Rhesus (RH) Factor

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26
Q

antibodies in type A blood

A

anti B

27
Q

antibodies in type B

A

anti A

28
Q

antibodies in type AB

A

none

29
Q

antibodies in type o

A

anti a and anti b

30
Q

antigens of type A

A

a antigen

31
Q

antigen of type B

A

b antigen

32
Q

antigen of type a and b

A

a and b antigens

33
Q

antigen of type o

A

none

34
Q

Pulmonary Circuit:

A

Heart (right) -> Lungs -> Heart (left)

35
Q

Deoxygenated blood enters where via what

A

right atrium via vena cava

36
Q

right Atrium contracts and squeezes blood through…

A

tricuspid valve to right ventricle

37
Q

Right Ventricle contracts and pumps blood through…

A

pulmonary semilunar valve to pulmonary
artery.

38
Q

lowest concentration of oxygen in body

A

pulmonary artery

39
Q

Blood is oxygenated in

A

lungs

40
Q

what returns blood to left atrium.

A

pulmonary vein

41
Q

Pulmonary vein returns blood to…

A

left atrium

42
Q

highest concentration of
oxygen in the body

A

pulmonary vein

43
Q

Systemic Circuit:

A

Heart (left) -> Body -> Heart (right)

44
Q

contracts and pumps blood through bicuspid valve to left ventricle

A

left atrium

45
Q

Left atrium contracts and pumps blood through…

A

bicuspid valve to left ventricle

46
Q

Contraction of left ventricle sends blood through…

A

aortic semilunar valve to aorta,

47
Q

Contraction of WHAT sends blood through aortic semilunar valve to aorta,

A

LEFT ventricle

48
Q

sends
blood to arteries for distribution throughout the body

A

aorta

49
Q

Oxygenated blood is transported to body tissues via

A

arteries -> arterioles -> capillaries ->
tissues

50
Q

Deoxygenated blood is transported back to the heart via

A

veins

51
Q

Deoxygenated blood enters the right atrium via

A

superior and inferior vena cava.

52
Q

Carry oxygenated blood away from the heart

A

arteries

53
Q

Arteries branch into

A

arterioles

54
Q

wrapped in smooth muscle and are major
determinants of blood pressure

A

arterioles

55
Q

Carry deoxygenated blood towards the heart

A

veins

56
Q

small vessels that collect back to veins

A

venules

57
Q

Smallest vessels with a single layer of endothelial cells to allow for exchange of gas,
nutrients, and waste with body tissues

A

capillaries

58
Q

Regulate passage of blood into capillaries.

A

precapillary sphincters

59
Q

Aqueous mix of blood proteins, salts,
gases, and nutrients

A

plasma

60
Q

Plasma without clotting proteins

A

serum

61
Q

Cell fragments for blood clotting

A

platlets

62
Q

Transport oxygen on
hemoglobin

A

Erythrocytes (RBC):

63
Q

Phagocytes that
engulf foreign particles

A

Leukocytes (WBC):

bio (49 decks)

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