2A The Heart

Question 1

what does humans have to transport blood around the body which the heart acts as a pump

Answer 1

a double circulatory system

Question 2

what is the circuit powered by the right ventricle responsible for

Answer 2

pumping blood to lungs

Question 3

what is the circuit power by the left ventricle responsible for

Answer 3

pumping blood around the body

Question 4

whats the structure of the heart

Answer 4

vena cava pump into right atrium into right ventricle out through pulmonary artery to lungs and back in through pulmonary vein into left atrium and left ventricle then out by aorta

Question 5

where and whats a pacemaker in the heart

Answer 5

a group of cells in the right atrium act as pacemaker to control natural resting heart rate

Question 6

what can patients with an irregular heartbeat do

Answer 6

be fitted with an electrical artificial pacemaker

Question 7

whats the function of the circulatory system

Answer 7

to transport food and oxygen to every cell in the body and carry waster product like co2 and urea to where they can be removed