Transport in humans Flashcards
(10 cards)
1
Q
Four types of blood are?
A
- red blood cells
- white blood cells
- platelets
- plasma
2
Q
What is the role of plasma in the transport of carbon dioxide, digested food?
A
Transports anything around your body.
3
Q
What is the adaptation of red blood cells for transport of oxygen?
A
- large biconcave suface area
- it has no nucleus
- and it has haemaglobin
4
Q
Structure of the heart
A
5
Q
When does heart rate change?
A
- excerise
- addrenaline
6
Q
What factors may increase the risk of developing coronary heart disease?
A
- the coronary arteries gts blocked up by layers of fatty materials.
7
Q
The structre of arteries and there function?
A
- carry the blood away from the heart.
- elastic fibres and smoth muscle
8
Q
The structure of veins and there function?
A
- these carry the blood to the heart.
- elastic fibre and smooth muscle
9
Q
The structure of capillaries and their function?
A
- these are involved in the exchange of materials at the tissues
- thin wall (only one cell thick)
10
Q
What is he general plan of the circulation system?
A
- Blood come out the aorta.
- Splits into the hepatic artery, or the renal artery or the gut or to lower limbs.
- Goes through liver or kidney.
- Up the renal vein - hepatic vein.
- Into the vena cava
