Blood Flashcards

1
Q

Capillary

A

microscopic blood vessels

all cells are next to capillaries

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2
Q

Blood Flow is:

A

intermittent

only heart, brain, & lungs have non-stop blood flow

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3
Q

Fenestration

A

holes in capillary that use blood pressure to push blood through to tissue

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4
Q

Blood is a:

A

solution

cells are floating in water, movement from heart keeps cells in soln

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5
Q

Anticoagulant

A

chemical prevents blood from clotting

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6
Q

Serum

A

water portion of clotted blood (no clotting ability)

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7
Q

Plasma

A

water portion of blood w/ anticoagulant (can still clott)

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8
Q

At altitude blood contains:

A

55% water

45% blood cells

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9
Q

Packed cell volume (PCV)

A

amount of cells that separate out when centrifuge (RBC, WBC, Platelets)

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10
Q

Micron

A

1/1000th of a millimeter

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11
Q

RBC size

A

7 microns

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12
Q

Cellular fraction of blood contains:

A

Erythrocytes (RBC), Thromocytes (platelets), Leukocytes (WBC)

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13
Q

RBC shape

A

biconcave disc

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14
Q

RBC numbers

A

normal ~7 million RBC/mm cubed

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15
Q

Anemia

A

> 7 million RBC, reduced number of RBC

presents w/ white or pale gums

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16
Q

Polycythemia

A

increased number of RBC, viscous blood can cause clotting

presents w/ brick red gums

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17
Q

RBC function

A

transports oxygen to all cells

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18
Q

Hemoglobin

A

attracts O2 to RBC and goes to other cells through diffusion

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19
Q

Diffusion

A

passive movement of gas/solute from hight to low concentration (doesn’t require energy)

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20
Q

RBC’s produced:

A

in the red bone marrow

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21
Q

Lifespan of RBC’s

A

120 days

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22
Q

Hemolysis

A

rupturing or dying of RBCs

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23
Q

Thrombocyte Shape:

A

variable, irregular

24
Q

Thrombocyte Size:

A

~2.5 microns

25
Thrombocyte Number:
200,000 to 300,000/ mm cubed
26
Thrombocytosis
increased number of thrombocytes | can cause blockage/clots
27
Thrombocytopenia
decreased number of thrombocytes | can cause petechia in eyes
28
Thrombocyte Function:
blood clotting
29
Normal clotting time:
~3 minutes
30
Thrombocytes produced:
red bone marrow | constantly being replaced
31
Leukocyte Shape:
variable
32
Leukocyte Size:
7 to 25 microns (based on cell type)
33
Types of Leukocytes:
``` Neutraphil Monocyte Lymphocyte Eosinophil Basophil ```
34
Neutrophil
granulocyte, phagocyte, 1st responder, has nucleus w/ 3 connected parts
35
Monocyte
agranulocyte, phagocyte, tanks, 1 nucleus
36
Lymphocytes
agranulocyte, make antibodies, deal w/ viruses, 1 nucleus
37
Antibodies
immune proteins | attaches to virus to be recognized by immune system
38
Eosinophil
granulocyte, for allergies or parasites
39
Basophil
granulocyte, least numerous, function is questionable
40
Leukocyte Numbers:
7,000 to 15,000/ mm cubed
41
Leukocytosis
increased number of WBC (25,000) | usually bacterial infection
42
Leukopenia
decreased number of WBC (2,000) | usually viral infection
43
Antibiotics
man made drugs to fight bacteria
44
Leukocyte Function:
immunity
45
Leukocytes produced;
red bone marrow
46
Acellular fraction of blood (plasma):
Dietary: H2O, Carbohydrates, Lipids, Protein, Vitamins, Electrolytes, Trace Minerals, NaHCO3 (sodium bicarbonate) Body Products: Hormones, Enzymes, Hepatic Proteins, Metabolic Waste Products
47
GI Absorption is:
GI tract absorbs nutrients from food stuffs and puts in blood stream, except fiber
48
Fiber is:
indigestible, from plant matter, makes up most of stool
49
H2O absorption:
doesn't need to be broken down is absorbed quickly blood volume increases by H2O ingested if not needed is quickly eliminated
50
Carbohydrates are:
plant based | need to be broken down by amylase (enzyme) into glucose which is used for energy production
51
Enzyme is:
protein catalyst
52
Normal Blood Glucose Level is:
70-100mg/100cc
53
Insulin is:
hormone needed for cells to use glucose
54
Hormones are:
endocrine and exocrine biologic messengers
55
Diabetes Mellitus is:
lack of insulin production
56
Lipids are:
animal and plant (oils) based | need lipase to break into fatty acids & glycerol