BBC1 年
Structure of blood and blood vessels
Artery Vein Capillary Function Carry blood away from ... Allows diffusion of gases and nutrients from blood into the body cells Wall Thick, muscular Thinner Very thin, one cell thick Lumen Small ...
BBC4 年
Structure of blood and blood vessels
Artery Vein Capillary Function Carry blood away from ... Allows diffusion of gases and nutrients from blood into the body cells Wall Thick, muscular Thinner Very thin, one cell thick Lumen Small ...