Circulatory System - The Heart

Question 1

What circulatory system do mammals have?

Answer 1

Double , this means that the oxygenated blood goes one way and the deoxygenated blood goes another in a system.

Question 2

How many chambers and blood vessels does the heart have?

Answer 2

4 chambers

And 4 vessels

Question 3

What does the right atrium do?

Answer 3

Receives the deoxygenated blood from the body

From the vena cava

Question 4

What does the left ventricle do?

Answer 4

Deoxygenated blood moves through which is then passed to the lungs

Using the pulmonary artery

Question 5

What does the left atrium do?

Answer 5

Received oxygenated blood from the lungs

Using the pulmonary vein

Question 6

What does the left ventricle?

Answer 6

Oxygenated blood moves through the left ventricle which is pumped around the whole body

Using the aorta

Question 7

Why is the left side thicker then the right side?

Answer 7

As it has to pump it around the whole body so it needs more muscle

Question 8

How do you calculate cardiac output ?

Answer 8

Cardiac output: heart rate x stroke volume

Cardiac output - cm^3 min^-1
Stroke volume - cm^3
Heart rate - bpm