Re-sit Blood Components Flashcards
(5 cards)
1
Q
What is blood made up of?
A
55% plasma
45% erythrocytes
1% leukocytes
1% platelets
2
Q
What’s the structure of red blood cells?
A
They are concave discs that don’t have a nucleus and carry 02 and some CO2.
3
Q
What is the red blood cells main job?
A
To carry O2 from the lungs to the rest of the body and transport CO2 back to the lungs for exhalation.
4
Q
What’s the role of plasma?
A
Transports nutrients, hormones and waste
Regulates body temp and pH
Support blood pressure and volume
Has a role in immunity and clotting
5
Q
How do red blood cells form?
A
Starts in bone marrow
Differentiates into pro erythroblast
Synthesises haemoglobin and nucleus expelled= reticulocyte
Reticulocyte matures after leaving bone marrow= erythrocyte
Process is stimulated by low O2 levels
