blood flow

Question 1

why is blood flow important

Answer 1

for the body to function in avtivities, the blood needs to accomodate by increasing or decreasing blood flow

Question 2

what is a cardiac cycle

Answer 2

events that occur in one singular heartbeat

Question 3

what is the pumping phase of the cardiac cycle

Answer 3

systole is when the heart muscle contracts which empties the blood from the heart

Question 4

what is the filling phase of the cardiac cycle

Answer 4

diastole is when the heart muscle relaxes and fills the heart with blood

Question 5

what is the contraction of the atria called

Answer 5

atrial systole which forces blood into ventricles

Question 6

what is the contraction of the ventricles called

Answer 6

ventricular systole which forces blood into arteries

Question 7

what do valves do

Answer 7

stop blood from flowing backwards

Question 8

what is chordae tendineae

Answer 8

it is a tendon that opens and closes valves of the heart