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DAT Circulatory System Cheat Sheet 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
+/- part of blood type is called...
Rhesus (RH) Factor
26
antibodies in type A blood
anti B
27
antibodies in type B
anti A
28
antibodies in type AB
none
29
antibodies in type o
anti a and anti b
30
antigens of type A
a antigen
31
antigen of type B
b antigen
32
antigen of type a and b
a and b antigens
33
antigen of type o
none
34
Pulmonary Circuit:
Heart (right) -> Lungs -> Heart (left)
35
Deoxygenated blood enters where via what
right atrium via vena cava
36
right Atrium contracts and squeezes blood through...
tricuspid valve to right ventricle
37
Right Ventricle contracts and pumps blood through...
pulmonary semilunar valve to pulmonary artery.
38
lowest concentration of oxygen in body
pulmonary artery
39
Blood is oxygenated in
lungs
40
what returns blood to left atrium.
pulmonary vein
41
Pulmonary vein returns blood to...
left atrium
42
highest concentration of oxygen in the body
pulmonary vein
43
Systemic Circuit:
Heart (left) -> Body -> Heart (right)
44
contracts and pumps blood through bicuspid valve to left ventricle
left atrium
45
Left atrium contracts and pumps blood through...
bicuspid valve to left ventricle
46
Contraction of left ventricle sends blood through...
aortic semilunar valve to aorta,
47
Contraction of WHAT sends blood through aortic semilunar valve to aorta,
LEFT ventricle
48
sends blood to arteries for distribution throughout the body
aorta
49
Oxygenated blood is transported to body tissues via
arteries -> arterioles -> capillaries -> tissues
50
Deoxygenated blood is transported back to the heart via
veins
51
Deoxygenated blood enters the right atrium via
superior and inferior vena cava.
52
Carry oxygenated blood away from the heart
arteries
53
Arteries branch into
arterioles
54
wrapped in smooth muscle and are major determinants of blood pressure
arterioles
55
Carry deoxygenated blood towards the heart
veins
56
small vessels that collect back to veins
venules
57
Smallest vessels with a single layer of endothelial cells to allow for exchange of gas, nutrients, and waste with body tissues
capillaries
58
Regulate passage of blood into capillaries.
precapillary sphincters
59
Aqueous mix of blood proteins, salts, gases, and nutrients
plasma
60
Plasma without clotting proteins
serum
61
Cell fragments for blood clotting
platlets
62
Transport oxygen on hemoglobin
Erythrocytes (RBC):
63
Phagocytes that engulf foreign particles
Leukocytes (WBC):

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