Blood Vessels

Question 0

Capillaries

Answer 0

1. arteries branch into capillaries
2. they are tiny
3. They carry blood close to every cell in the body to exchange substances with them
4. they have permeable walls so things can diffuse in and out
5. supply food and oxygen, take waste away e.g.co2

Question 1

What are three main types of blood vessel

Answer 1

1. arteries
2. capillaries
3. veins

Question 2

Arteries

Answer 2

1. carry blood away from the heart

2. largest artery is the AORTA

Question 3

Veins

Answer 3

1. take blood back to the heart
2. capillaries join up to form veins
3. they have a bigger lumen than arteries to help the blood flow despite the lower pressure
4. have valves to keep blood flowing in the right direction
5. biggest vein is VENA CAVA