deoxygenated blood travels from heart to lungs
pulmonary
becomes oxygenated, travels back to heart
Double circulatory sy
oxygenated blood travels to the whole body,
systemic
becomes deoxygenated, travels back to heart
aorta have haemoglobin, which binds to oxyg
forms oxyhaemoglobin, transports oxyg
pulmonary artery to body cells
high pressure blood (except pulmonary)
arteries
small lumen
muscular walls
transports blood away from heart
low pressure blood
Pathway of air
oxygen in alveoli diffuses into capillaries
valves
and binds haemoglobin in red blood cells
to form oxy haemoglobin
Gas exchange transports blo
carbon dioxide in capillaries diffuses
into alveoli to be expired
pulmonary
becomes oxygenated, travels back to heart
Double circulatory sy
oxygenated blood travels to the whole body,
systemic
becomes deoxygenated, travels back to heart
aorta have haemoglobin, which binds to oxyg
forms oxyhaemoglobin, transports oxyg
pulmonary artery to body cells
high pressure blood (except pulmonary)
arteries
small lumen
muscular walls
transports blood away from heart
low pressure blood
Pathway of air
oxygen in alveoli diffuses into capillaries
valves
and binds haemoglobin in red blood cells
to form oxy haemoglobin
Gas exchange transports blo
carbon dioxide in capillaries diffuses
into alveoli to be expired
