the heart

Question 1

mammals have a … circulatory system

Answer 1

double

Question 2

when blood flows from LUNGS to HEART to BODY

Answer 2

carries oxygenated blood

Question 3

when blood flows from the BODY to HEART to LUNGS

Answer 3

carries deoxygenated blood

Question 4

3 stages

Answer 4

blood enters atria (left and right atrium)
atria contract, blood forced into ventricles
ventricles contract, blood forced out of heart

Question 5

vena cava (r) has (?) from (?)
then the (?) carries blood from (what to what)

Answer 5

deoxygenated blood from the body

pulmonary vein carries deoxygenated blood from heart to lungs

Question 6

pulmonary vein (l) has (?) from (?)
then the (?) carries blood from (what to what)

Answer 6

oxygenated blood from lungs

aorta carries blood from heart to rest of body