questions on the heart

Question 1

where can you find the coronary arteries?

Answer 1

the coronary arteries are found in the cardiac muscles of the heart

Question 2

explain why coronary arteries can sometimes become blocked?

Answer 2

they can sometime can become blocked up with plaque so then oxygen cannot be delivered to the muscles

Question 3

describe the structure of the circulatory system

Answer 3

the circulatory system is made up of your heart and blood

Question 4

explain the advantages of a double circulatory system

Answer 4

blood can go all around the body and pass through the heart twice once oxygen and the other very low oxygen

Question 5

describe the structure of the heart

Answer 5

the heart is made up of four chambers that push blood around the body

Question 6

explain how exercise effects heart rate

Answer 6

your body is taking in more oxygen so then your heart is pumping more blood around the body