ANIMAL PHYSIOLOGY BZT 214
CIRCULATORY SYSTEM
BY TAN SUE HAN
DIFFERENCES AND SIMILARITIES BETWEEN
HEARTS OF HUMAN, FISHES AND REPTILES
Organism Human Bird Reptile
Size Big Small
No. of chambers
4 (2 atriums
& 2
ventricles)
2(1 atrium
& 1 ventricle)
3(2 atriums
& 1 ventricle)
Separation of
oxygenated &
deoxygenated blood
CompleteNearly
complete
FUNCTIONS OF BLOOD CELLSAKA
HEMATOCYTES
o Transport oxygen to cells and carbon dioxide away from the cells
o Transport and store nutrients in the body
o Responsible for immune defenseo As a blood clotting factor