Heart
4 chambers
1 left t right atria
thin muscular walls
recieve blood entering the heart
2 left t right ventricle
thick muscular walls to pump blood
through body
only birds mammals have hearts with
2 separate pumps
left atrium recieves oxygenated
blood from lungs
left ventricle pumps it out in the
aorta to body
brain
muscles
liver
deoxygenated blood goes from organs
to largeto veins the vena cava
empties right atrium
systematic circulation
right ventricle pumps deoxygenated
blood out in the pulmonary artery
to lungs
blood get Oz releases coz
oxygenated blood returns to pulmonary
veins empty into left atrium
pulmonary circulation
, heart made of cardiac muscles
contract relax no stopping
a to do this muscle need cottizoo Oz
muscles outside of heart supplied to
need own supply muscles by
blood
4 coronary arteries
Palimony
4 chambers
1 left t right atria
thin muscular walls
recieve blood entering the heart
2 left t right ventricle
thick muscular walls to pump blood
through body
only birds mammals have hearts with
2 separate pumps
left atrium recieves oxygenated
blood from lungs
left ventricle pumps it out in the
aorta to body
brain
muscles
liver
deoxygenated blood goes from organs
to largeto veins the vena cava
empties right atrium
systematic circulation
right ventricle pumps deoxygenated
blood out in the pulmonary artery
to lungs
blood get Oz releases coz
oxygenated blood returns to pulmonary
veins empty into left atrium
pulmonary circulation
, heart made of cardiac muscles
contract relax no stopping
a to do this muscle need cottizoo Oz
muscles outside of heart supplied to
need own supply muscles by
blood
4 coronary arteries
Palimony
