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A&P 2 > Quiz #2 > Flashcards

Quiz #2 Flashcards

1
Q

blood functions

A

transport, regulation, protection

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2
Q

spun tube of blood layers (bottom to top)

A

erythrocytes, WBCs, plasma

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3
Q

Buffy coat

A

thin, whitish layer between RBCs and plasma layers

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4
Q

WBCs and platelets found in

A

buffy coat

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5
Q

Blood colors

A

high O2 (scarlet red); low O2 (dark red)

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6
Q

blood pH

A

7.35-7.45

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7
Q

Which formed element has the only complete cells

A

WBCs

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8
Q

RBCs have no…

A

nuclei or other organelles

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9
Q

Erythrocyte functions

A

respiratory gas exchange

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10
Q

Erythropoietin (EPO)

A

hormone that stimulates formation of RBCs

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11
Q

EPO is released in ____ in response to _____

A

kidneys; hypoxia

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12
Q

What inhibits erythrocyte production?

A

too many or high oxygen levels in blood

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13
Q

Anemia

A

not enough RBCs being produced

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14
Q

Sickle Cell Anemia

A

cells become crescent shaped

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15
Q

Thalassemias

A

one globin chain is absent or faulty; RBCs are thin, delicate, and deficient in hemoglobin

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16
Q

Polycythemia

A

abnormal excess of RBCs; increases blood viscosity, causing sluggish blood flow

17
Q

Leukocytes function

A

in defense against disease

18
Q

two types of Leukocytes

A

granulocytes, agranulocytes

19
Q

granulocytes

A

contain visible cytoplasmic granules

20
Q

agranulocytes

A

do not contain visible cytoplasmic granules

21
Q

Platelet formation

A

hematopoietic stem cell, megakaryoblast, megakaryocyte, megakaryocyte

22
Q

hemostasis

A

fast series of reactions for stoppage of bleeding

23
Q

three steps of hemostasis

A

vascular spasm, platelet plug formation, coagulation (blood clotting)

24
Q

RBC formation

A

(1) stimulus (hypoxia);(2) kidney releases erythroprotein; (3) erythroprotein stimulates red bone marrow; (4) enhanced erythropoiesis increases RBC count; (5) O2-carrying ability of blood rises

A&P 2 (20 decks)

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