Blood

Question 1

How much blood in body?

Answer 1

5L - 3L in venous systemic circulation

350 ml in newborn baby

Question 2

Functions of blood

Answer 2

Defence, carry gas, clotting, thermoregulation, carry active compounds, pH

Question 3

Plasma made up of

Answer 3

Dissolved enzymes, nutrients, hormones and waste

Question 4

Plasma proteins

Answer 4

Albumin, globulin, fibrinogen

Question 5

Colloid oncotic pressure

Answer 5

Proteins cannot cross capillary wall so pull water in - change in volume

Question 6

Fluid movement depends on

Answer 6

COP and hydrostatic pressure

Question 7

Hypoproteinaemia

Answer 7

Less protein in blood due to liver or kidney disease or starvation

Question 8

What do all blood cells come from?

Answer 8

Pluripotent bone marrow

Question 9

Erythropoesis

Answer 9

RBC formation and accelerated by erythropoietin

2-3 day delay

Question 10

Viscosity

Answer 10

How thick blood is compared to water

plasmax1.8blood x3-4

Question 11

Leukopoesis

Answer 11

Controlled by cocktail of cytokines to form WBC

Question 12

Platlets

Answer 12

Membrane bround fragments adhere to damaged blood vessel

Question 13

Haematocrit

Answer 13

% of RBC in whole blood

Female less than male about 35%

Question 14

Bilrubin

Answer 14

Broken down RBC