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General Physio/ANS > The Blood > Flashcards

The Blood Flashcards

1
Q

What is blood composed of?

A

Plasma and Formed elements

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2
Q

Layers of spinned blood

A

Plasma - 55%
Buffy coat - <1%
Erythrocytes - 45%

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3
Q

Main functions of blood

A
  • Distribution and transport of gases, nutrients, waste and hormones
  • Homeostasis - pH and temperature
  • Protection - Platelets for sealing, Leucocytes for phagocytosis
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4
Q

What fraction of the body weight is blood?

A

8%

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5
Q

Average blood volume

A

Female: 4-5 L
Male: 5-6 L

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6
Q

Blood pH

A

7.35 - 7.45

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7
Q

Viscosity of blood relative to water

A

Whole blood: 4.5-5.5

plasma: 2.0

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8
Q

Blood osmolarity

A

280-300 mOsm/L

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9
Q

Mean salinity of blood

A

0.85%

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10
Q

What is haematocrit?

A

Volume percentage of RBCs in the blood, also PCV

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11
Q

Normal haematocrit values

A
  • Female: 37%-48%
  • male: 45%-52%
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12
Q

Blood haemoglobin

A

Female: 12-16 g/100 ml
Male: 13-18 g/100 ml

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13
Q

Mean RBC Count

A

Female: 4.8 million/uL
Male: 5.4 million/uL

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14
Q

Platelet count

A

130,000-360,000/uL

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15
Q

Total WBC count

A

4,000-11,000/uL

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16
Q

What percentage of plasma is water?

A

92%

17
Q

Proteins in plasma

A

Albumin
Globulin
Fibrinogen
Enzymes of diagnostic value trace

18
Q

Most abundant plasma protein

A

Albumin

19
Q

Composition of plasma

A 
Water
Proteins
Glucose
Amino acid
Lactic acid
Lipid/Cholesterol
Fatty acids
Iron/Vitamins
Electrolytes 
Nitrogenous waste
20
Q

Difference between plasma and serum

A

Serum - Clotting protein, fibrin, present

Plasma - Fibrin absent

21
Q

What are the formed elements?

A

Erythrocytes
Leukocytes
Platelets

General Physio/ANS (8 decks)

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