Blood And Organs Flashcards
0
Q
How are platelets held together
A
FIBRIN
1
Q
What’s the function of platelets
A
When you damage a blood vessel platelets clump together to clot the wound
They imaginatively named it “blood clotting”
Blood clots stop you loosing too much blood and prevent bacteria/microorganisms entering
2
Q
What’s the role of plasma
A
To carry everything around the body
E.g. Urea, co2, digested food
3
Q
What are the four main components of blood
A
- plasma
- platelets
- red blood cells
- white bled cells
4
Q
What do red blood cells do
A
They transport oxygen from the lungs to all the cells in the body
5
Q
How are rbc adapted to their job
A
- have a small biconcave shape to give a large surface area for absorbing and releasing oxygen
- small so can easily fit through capillaries
- don’t have a nucleus so more free space to carry oxygen
