Mass transport in mammals

Question 1

In mammals is the circulatory system double or single?

Answer 1

Double

Question 2

What arteries supply blood to the heart?

Answer 2

Coronary arteries

Question 3

Heart -> lungs

Answer 3

Pulmonary artery

Question 4

Lungs -> heart

Answer 4

Pulmonary vein

Question 5

Heart -> body

Answer 5

Aorta (high pressure)

Question 6

Body -> heart

Answer 6

Vena cava

Question 7

What takes oxygenated blood in the kidneys?

Answer 7

Renal artery

Question 8

What takes deoxygenated blood out of kidneys?

Answer 8

Renal vein

Question 9

What steps does blood travel through (from coming into heart to leaving to the body?)

Answer 9

1. Vena cava -> R atrium (deoxygenated).
2. R Atrium contracts -> R Ventricle (deoxygenated)
3. R Ventricle contracts -> pulmonary artery
4. Lungs -> pulmonary vein
5. Pulmonary vein -> L Atrium (oxygenated)
6. L Atrium contracts -> L ventricle
7. L ventricle contracts -> aorta

Question 10

Difference between left side of heart and right side of heart.

Answer 10

Left side of heart has thicker walls due to pumping body to whole of body which has to be higher pressure.