Pack 1- the heart

Question 1

what is the heart made of?

Answer 1

cardiac muscle

Question 2

the right side…

Answer 2

receives deoxygenated blood and pumps to the lungs

Question 3

the left side…

Answer 3

receives oxygenated blood and pumps to the body.

Question 4

cardiac cycle definition

Answer 4

one complete sequence of filling and pumping blood

Question 5

name the phases of the cardiac cycle

Answer 5

diastole
atrial systole
ventricular systole

Question 6

what happens during atrial systole

Answer 6

blood return to heart under low pressure
passively flow into atria
pressure increase causes atrioventricular valves to open
atria walls contract to push through remaining blood

Question 7

what happens during ventricular systole

Answer 7

ventricles contract
open semilunar valves
blood moved to aorta or pulmonary artery.
AV valves close to prevent backflow

Question 8

what happens during diastole

Answer 8

blood drawn back to ventricles closes SL valves
AV valves open sometimes
blood moves from veins to atria passively.

Question 9

how do you calculate heart rate (BPM)

Answer 9

60/cycle time(sec)