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Bio 40B > Blood > Flashcards

Blood Flashcards

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Biology 101 flashcards
1
Q

what type of tissue is blood

A

connective tissue

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2
Q

what is blood composed of

A

plasma and formed elements

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3
Q

what are the formed elements of blood

A

RBC, WBCs, platelets

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4
Q

functions of blood

A

1) transports o2, co2, nutrients, wastes, heat, and hormones
2) plays a part in regulation pH, body temp, and water content of cells
3) prevents blood loss through clotting and fights against infections and bacteria through WBCs

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5
Q

viscosity of blood

A

greater than water

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6
Q

temperature of blood

A

38 C, 100.4 F

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7
Q

pH of blood

A

7.35-7.45

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8
Q

percentage of total blood volume occupied by RBCs; measures the percentage of RBCs in the whole blood

A

hematocrit

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9
Q

blood cells are formed from what cells

A

pluripotent stem cells

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10
Q

what are the pluripotent stem cells

A

myeloid stem cells and lymphoid stem cells

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11
Q

stem cells that give rise to RBCs, platelets, and all WBCs except for lymphocytes

A

myeloid stem cells

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12
Q

stem cells that give rise to lymphocytes

A

lymphoid stem cells

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13
Q

contains the o2 carrying protein Hgb

A

red blood cells

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14
Q

life cycle of RBCs

A

about 120 days

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15
Q

erythropoiesis

A

production of RBCs

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16
Q

functions of WBCs

A

combat inflammation and infection

17
Q

describe WBCs

A

nucleated cells and do not contain Hgb

18
Q

2 principal types of WBCs

A

granular and agranular

19
Q

granular WBCs (3)

A

neutrophils, eosinophils, basophils

20
Q

agranular WBCs (2)

A

lymphocytes and monocytes

21
Q

which particular WBCs are active in phagocytosis

A

neutrophils and macrophages

22
Q

WBCs responsible for phagocytosis

A

neutrophils

23
Q

WBCs that combat the effects of histamine in allergic reactions, phagocytize antigen-antibody complexes and destroy certain parasitic worms

A

eosinophils

24
Q

WBCs that liberate heparin, histamine and serotonin in allergic reactions that intensify overall inflammatory response

A

basophils

25
Q

WBCs that mediate immune responses, including antigen-antibody reactions

A

lymphocytes

26
Q

type of lymphocyte that develop into plasma cells, which secrete antibodies

A

B cells

27
Q

type of lymphocyte that attack invading viruses, CA cells, and transplanted tissue cells

A

T cells

28
Q

type of lymphocyte that attack a wide variety of infectious microbes and certain spontaneously tumor cells

A

natural killer cells

29
Q

type of WBCs that are responsible for phagocytosis (after transforming into fixed or wandering macrophages)

A

monocytes

30
Q

helps stop blood loss from damaged vessels by forming a platelet plug

A

platelets

Bio 40B (25 decks)

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