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Flashcards in Blood Deck (317)
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1

What are the physiological functions of blood?

Transportation medium:

  • Blood gases
  • Nutrients
  • Metabolites
  • Information
  • Heat
  • Defense mechanism
  • Haemostasis
  • Homeostasis

2

Give the total buffer capacity for a bicarbonate buffer

53%

3

Give the total buffer capacity for non bicarbonate buffer

47%

4

Haemostasis

Coagulation

Reactions after vessel injuries

5

Effect of blood on homeostasis

Promotes:

  • Isovolemia
  • Isotonia
  • Isoionia
  • Isohydria

6

What proportion of blood is water?

90%

7

Composition of blood

  • Plasma
  • RBCs
  • WBCs
  • Thrombocytes

8

Blood + Anticoagulation and Centrifugation →

Plasma (with fibrinogen) + Cellular elements

9

Blood + long resting period

Serum (no fibrinogen)

Blood clot (fibrin-web)

10

Hematocrit

  • Diagnostic parameter
  • Shows the proportion of corpuscular elements to the whole volume

11

Average hematocrit value

40% or 0.4

12

Average hematocrit value for dogs

0.46

13

Average hematocrit value for hens

0.32

14

What does the hematocrit show us?

The veloicty of sedimentation corpuscular elements

15

Blood cell sedimentation rate for horses

60-70 mm/hour

16

Blood cell sedimentation rate for dogs

5-10 mm/hour

17

Blood cell sedimentation rate for swine

1-14 mm/hour

18

Blood cell sedimentation rate for hens

1-4 mm/hour

19

Blood cell sedimentation rate for ruminants

0-2 mm/hour

20

Blood cell sedimentation rate for human

3-10 mm/hour

21

pH of blood

7.35 - 7.45

pHvenous <  pHarterial

22

Give the relative viscosity of:

  • Total blood
  • Plasma
  • Water

  • Total blood: 4 (max 5.6)
  • Plasma: 2
  • Water: 1

23

Give the density of plasma

1020 g/l

24

Give the density of total blood

1052 g/l

25

Give the density of blood cells

1090 g/l

26

Give the freezing point of blood

-0.56°C

27

Give the total osmotic pressure of blood

700 kPa

28

Give the colloidosmotic/oncotic pressure of blood

2.7-4kPa

29

Give the osmolarity of blood

300 mmol/l

30

Give the blood volume of the body

80 ml/bwt