the heart

Question 1

what type of blood does the left side of the heart deal with?

Answer 1

oxygenated blood

Question 2

what type of blood does the right side of the heart deal with?

Answer 2

deoxygenated blood

Question 3

describe the process of the circulatory system

Answer 3

the heart receives deoxygenated blood from the body and pumps it to the lungs.
at the lungs gas exchange takkes place
oxygenated blood returns to the heart and is then pumped around the body

Question 4

what type of muscle is the heart made from?

Answer 4

cardiac muscle

Question 5

how is the heart rate controlled?

Answer 5

the resting heart rate is controlled by a groups of cells in the wall of the right atrium that act as a natural pacemaker

Question 6

what are the arteries that supply the heart cells with oxygen and glucose called?

Answer 6

coronary arteries
if these arteries become blocked or narrow the hearts muscle cells cannot respire and so do not have the energy needed to contract