Cardiovascular system Intro Flashcards
1
Q
what does the cardiovascular system consist of ?
A
- heart
- blood vessels
- blood
2
Q
what is the function of the cardiovascular system?
A
to transport important substances around the body e.g oxygen
3
Q
what is the function of the heart ?
A
to pump blood around the body
4
Q
what type of circulation does the heart have?
A
a double circulatory system
5
Q
what does a double circulatory system mean ?
A
blood passes through the heart twice per cycle
6
Q
describe the pulmonary circulation stage in the double circulation through the heart
A
- blood passes through heart
- pumped to the lungs
- returning back to the heart
7
Q
describe the systematic circulation stage in the double circulation through the heart
A
- blood passes through the heart a second time (blood is repressurised)
- then pumped round the body organs before returning to the heart
8
Q
why does blood move around the body ?
(pressure)
A
- blood moves around the body due to the pressure difference between the pressure in the heart (high) and the pressure in the blood vessels (low).
9
Q
A
