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blood > Histo 3 > Flashcards

Histo 3 Flashcards

1
Q

Blood

A

a fluid connective tissue that circulates through the cardiovascular system.

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2
Q

Total blood volume in the average adult is

A

about 6 L

or 7% to 8% of total body weight.

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3
Q

plasma

A

a extracellular component of blood which is protein rich fluid

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4
Q

erythrocytes

A

red blood cells (RBCs)

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5
Q

thrombocytes

A

Platelets

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6
Q

Blood’s many functions

A

Delivery
Maintenance of homeostasis
Transport
coagulation and thermoregulation

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7
Q

Blood delivers:

A
  1. nutrients and oxygen directly or indirectly to cells.

2. hormones and other regulatory substances to and from cells and tissues

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8
Q

What does blood transport

A

wastes and carbon dioxide away from cells

humoral agents and cells of the immune system that protect the body

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9
Q

How does blood maintain homeostasis

A

by acting as a buffer

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10
Q

extracellular material that imparts fluid properties to blood.

A

Plasma

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11
Q

Cells and plasms percentage

A

45%

55%

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12
Q

volume of packed erythrocytes in a sample of blood is called the

A

hematocrit

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13
Q

Leukocytes and platelets constitute only …% of the blood volume.

A

1

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14
Q

The leukocytes and platelets are contained in a narrow layer at the upper part of the cell fraction called

A

buffy coat

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15
Q

Range of blood cells

A

200,000-400,000 platelets
5000-9000 leukocytes
5,000,000-10,000,000 erythrocytes

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16
Q

More than 90% of plasma by weight is

A

water

17
Q

Why is water important in plasma

A

Because it serves as the solvent for a variety of solutes

18
Q

The solutes in the plasma help maintain

A

homeostasis

19
Q

Plasma proteins consist primarily of

A

albumin, globulins, and fibrinogen.

20
Q

main protein constituent of the plasma

A

Albumin

21
Q

smallest plasma protein

A

Albumin

70 kilodalton

22
Q

Albumin is made in

A

Liver

23
Q

Albumin function

A

exerting the concentration gradient between blood and extracellular tissue fluid.

24
Q

What maintains the correct proportion of blood to tissue fluid volume?

A

colloid osmotic pressure

25
Q

major osmotic pressure on the blood vessel wall is called

A

colloid osmotic pressure

26
Q

Globulins include

A

immunoglobulins

Non immunoglobulins

27
Q

The immunoglobulins are

A

antibodies

28
Q

immune globulins are secreted by

A

plasma cells.

29
Q

Nonimmune globulins are secreted by

A

the liver.

30
Q

Nonimmune globulins functions

A

help maintain the osmotic pressure within the vascular system and also serve as carrier proteins for various substances

31
Q

Copper is carried by nonimmune globulin

A

ceruloplasmin

32
Q

Iron is carried by nonimmune globulin

A

Transferrin

33
Q

Hemoglobin is carried by nonimmune globulin

A

haptoglobin

blood (4 decks)

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