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A&P - Bio145 Unit #3 > 10.1 Blood > Flashcards

10.1 Blood Flashcards

1
Q

Blood is

A

The connective tissue transported throughout the cardiovascular system

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2
Q

Plasma is % of blood

A

55%, The liquid component of this connective tissue (blood)

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3
Q

Formed elements of blood are formed

A

In bone marrow, cellular debris.

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4
Q

Blood is an excellent buffer with a pH of

A

7.35-7.45

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5
Q

Outside pH range blood becomes

A

Acidosis or alkalosis

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6
Q

Plasma is ___ water

A

Over 90%

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7
Q

Plasma is approx 7%

A

Dissolved proteins: albumins, globulins, fibrinogen

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8
Q

Albumin

A

Produced by liver, helps maintain osmolarity of blood. Damaged liver decreases albumin, cause edema.

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9
Q

Globulins

A

Antibodies

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10
Q

Fibrinogen

A

Clotting factor (inactive till activated)

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11
Q

Formed elements of blood are ___%

A

45

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12
Q

Formed element consists of

A

RBC (erythrocytes), WBC (leukocytes), platelets

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13
Q

White layer

A

Buffy coat, WBCs

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14
Q

Hematocrit is

A

RBC level (percentage)

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15
Q

Platelets have

A

Fragments of cells, clotting pathway

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16
Q

RBCs that are mature don’t have a

A

Nucleus

17
Q

RBCs contain

A

Hemoglobin (bound to iron), and transport Oxygen

18
Q

Erythropoietin

A
  • hormone produced by kidneys
  • stimulates RBC production
  • mature cells circulate for about 120 days before resorption and processing by spleen
19
Q

Two mechanisms for blood clot formation

A

Intrinsic pathways, extrinsic pathways

20
Q

extrinsic pathway

A

Trauma, Tissue factor to clotting factors, fibrinogen activates to fibrin,
highly regulated mechanism

21
Q

Intrinsic pathway

A

Damaged vessels, Clotting pathway, thrombus can form

22
Q

Blood types distinguished by

A

Surfaces markers (antigens)

23
Q

Surface antigens are

A

Proteins on cell surface (three separate)

24
Q

Codominant blood type

A

AB

25
Q

Rh factors

A

Coded by gene D
Rh comes from rhesus
Positive or negative (two recessive)

A&P - Bio145 Unit #3 (13 decks)

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