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Meharry Physiology > cardiovascular > Flashcards

cardiovascular Flashcards

1
Q

how much blood in adult

A

5 liters

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2
Q

what % of plasma and formed elements in blood

A

55% plasma, 45% formed elements (cells)

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3
Q

what are the 3 kind of cells seen in blood

A

 Erythrocytes (red blood cells, become enucleated)
 Leukocytes (white blood cells)
 Platelets (thrombocytes, formed by budding from bone marrow megakaryocytes)

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4
Q

t/f plasma is made mostly of water

A

true ..92%

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5
Q

which is smaller platelet or erythorocyte

A

platelet

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6
Q

what is the function of rbc

A

transport hemoglobin and bind 02 and co2

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7
Q

what is the function of platelets

A

promote blood clotting

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8
Q

list 5 types of WBC

A 
Neutrophil 
eosinophil 
basophil 
monocyte 
lymphocyte
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9
Q

function of neutrophil

A

phagocytoses bacteria

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10
Q

funciton of eosinophil

A

phagocytise antigen antibody complexes and parasites

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11
Q

funcition of basophil

A

involved in anticoagulation , increases vascular permiability

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12
Q

what is the function of monocytes

A

motile, gives rise to macrophages

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13
Q

what is the function of lymphocytes

A

acts in b (humoral) and t (cellular ) immunity

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14
Q

what are the 2 agranuolocytes WBC

A

monocytes

lymphocytes

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15
Q

what 3 things produced packed cell layers during centrifugation

A

EDTA, heparin, sodium citrate

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16
Q

what are typical hematocrit lvels

A

40-45

17
Q

what is hematocrit

A

packed cell volume

18
Q

what are the 3 things in hemostasis

A

Vasospasm
 Platelet Plug Formation
 Blood coagulation (Clotting)

19
Q

Coagulation cascade results in activated coagulated factors known as _____

A

Coagulation cascade results in activated coagulated factors known as
zymogens.

20
Q

the common pathway is where what pathways converge

A

the intrinsic and extrinsic

21
Q

what enzyme is activated in the common pathway

A

prothrombase is formed, turns prothrombin into thrombin

22
Q

what enzyme converts fibrinogen to fibrin

A

thrombin

23
Q

what factor is the first step in the common pathway

A

factor 10

24
Q

what are 3 functions of the cardiovascualr system

A

 Gas transport
 Nutrient delivery
 Waste removal

25
Q

what are 3 components of the cardiovascular system

A

Heart
 Blood vessels
 Blood

26
Q

which ventricle pumps blood into the systemic circulation

A

the left ventricle

27
Q

which valvues prevent backflow

A

mitral and tricuspid

28
Q

which valvues prevent regurgitation of blood

A

aortic and pulmonic

Meharry Physiology (8 decks)

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