the human heart Flashcards
1
Q
the heart is a
A
muscular pump
2
Q
what the hearts job
A
to pump blood all around the body to deliver oxygen and nutrients to respiring cells and remove co2
3
Q
where does the heart pump and deliver blood
A
pumps blood to lungs to collect oxygen and delivers co2
4
Q
what happens the oxygenated blood
A
oxygenated blood then goes back into the heart and is then pumped to the body cells
5
Q
what happens the deoxygenated blood
A
deoxygenated blood returns to the heart to be pumped to the lungs once more
6
Q
why does the heart have valves
A
the heart has valves to prevent the backward flow of blood
