17.1 and 17.2 Flashcards

(48 cards)

1
Q

what are the 3 functions of the blood

A

transport
regulation
protection

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2
Q

transport includes Delivering _____ from the lungs and ____ from the digestive tract to ______

A

oxygen
nutrients
all body cells

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3
Q

Transporting metabolic waste products from ___ to ______

A

cells

elimination sites

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4
Q

Transporting hormones from the ________ to their ______

A

endocrine organs

target organs

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5
Q

Maintaining appropriate body temperature by absorbing and distributing heat throughout the body and to the skin surface to encourage ______

A

heat loss

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6
Q

Maintaining normal pH in body tissues. Many blood proteins and other bloodborne solutes act as _____ to prevent excessive or abrupt changes in blood pH that could jeopardize normal cell activities. Blood also acts as the reservoir for the body’s “alkaline reserve” of _______

A

buffers

bicarbonate ions

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7
Q

Maintaining adequate fluid volume in the circulatory system. As we will see, blood proteins prevent ________ from the bloodstream into the tissue spaces. As a result, the fluid volume in the blood vessels remains ample to support efficient blood circulation to all parts of the body

A

excessive fluid loss

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8
Q

Preventing blood loss. When a blood vessel is damaged, ____ and ______- initiate clot formation, halting blood loss.

A

platelets

plasma proteins

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9
Q

Preventing infection. Drifting along in blood are antibodies, complement proteins, and_________ all of which help defend the body against foreign invaders such as bacteria and viruses.

A

leukocytes

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10
Q

Blood is a specialized connective tissue in which living blood cells, called the ______ are suspended in a nonliving flu id matrix called ____

A

formed elements

plasma

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11
Q

Blood lacks the collagen and elastic fibers typical of other connective tissues, but dissolved fibrous
proteins become visible as _______ during blood clotting

A

fibrin strands

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12
Q

Most of the reddish mass at the bottom of the tube is

A

erythrocytes

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13
Q

A thin, whitish layer called the ______ is present at the __________

A

buffy coat

erythrocyte plasma junction

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14
Q

what does the buffy coat contain

A

Leukocytes and platelets

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15
Q

Erythrocytes normally constitute about ___ of the total volume of a blood sample, a percentage known as the _____

A

45%

hematocrit

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16
Q

Normal hematocrit values vary.
In healthy males the norm is
in females it is

A

males - 47% ± 5%

females - 42% ± 5%

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17
Q

Leukocytes and platelets contribute less than____of

blood volume. Plasma makes up most of the remaining ____ of whole blood

A

less than 1%

55%

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18
Q

blood is technically made up of two things

A

plasma and formed elements (erythrocytes and buffy coat (leukocytes and platelets))

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19
Q

blood pH is

A

slightly alkaline 7.35 to 7.45

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20
Q

RBC count

A
women =  4.2-5.4 million cells per microliter
men = 4.7-6.1 million cells/µl
21
Q

average volume of blood in males and females

A
males = 5-6 L
females = 4-5 L
22
Q

plasma is mostly

23
Q

Although outnumbered by the lighter electrolytes, the heavier _______ are the most abundant plasma solutes by weight, accounting for about ____ of plasma weight.

A

plasma proteins

8%

24
Q

Except for hormones and gamma globulins (antibodies), most plasma proteins are produced by the

25
how much does albumin account for in plasma proteins
60%
26
_____ acts as a carrier to _____ certain molecules through the circulation, and is the major blood protein contributing to the __________
albumin shuttle plasma osmotic pressure
27
Most types of formed elements survive in the bloodstream for only a
few days
28
Most blood cells ______. Instead, _____ divide continuously in red bone marrow to replace them.
do not divide | stem cells
29
the solutes of the plasma fall in the categories of
``` electrolytes plasma proteins non protein nitrogenous substances organic nutrients respiratory gases hormones ```
30
plasma proteins include
albumin, globulins (alpha, beta, gamma), fibrinogen
31
electrolytes are the most abundant solutes by
number
32
electrolytes can be
anions or cations
33
what do electrolytes maintain
plasma osmotic pressure and normal blood pH
34
plasma proteins have lots of functions list some
- contribute to osmotic pressure - maintain water balance in the blood and tissues - other transport and enzymatic functions
35
most abundant plasma protein
albumin (60%)
36
where is albumin produced
by the liver
37
albumin is the main contributor to what
osmotic pressure
38
globulins are what percent of plasma proteins
36%
39
where are alpha and beta globulins produced
by the liver
40
alpha and beta globulins are mostly
transport proteins that bind to lipids, metal ions, and fat soluble vitamins
41
gamma are what
antibodies released by plasma cells during immune response
42
By-products of cellular met abolism, such as urea, uric acid, creatinine, and ammonium salts
non protein nitrogenous substances
43
``` Mat erials absorbed from digestive tract and transported f or use t hroughout body; include glucose and other simple carbohydrat es, amino acids (prot ein digest ion products), f atty acids, glycerol and triglycerides (fat digestion products), cholesterol, and vitamins ```
Nutrients (organic)
44
``` Oxygen and carbon dioxide; oxygen mostly bound to hemoglobin inside RBCs; carbon dioxide transported dissolved as bicarbonat e ion or C02, or bound to hemoglobin in RBC ```
respiratory gases
45
Steroid and thyroid hormones carried | by plasma proteins
hormones
46
fibrinogen
4% of plasma proteins
47
where is fibrinogen produced
liver
48
what does fibrinogen
forms fibrin threads of blood clot