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The exchange that takes place between organs and blood are **** and ********
Capillaries
capillaries is where the exchange of materials occur such as; gases,nutrients, hormones, and so on.between the blood and the interstitial fluid.
capillaries
capillaries
The site of respiration is the cells, more specifically, the mitochondria
Capillaries - The endometrium (epithelial lining/wall) of the capillaries is only one cell thick optimizing diffusion/osmosis between it and the tissue cells of the body
gas exchange occurs between pulmonary capillaries and the alveoli in the lungs.
gas exchange occurs between the thin walls of the alveoli and the thin walls of the capillaries
alveolus
capillaries
To exchange oxygen and nutrients between arterioles and venules