Tissue Fluid
Lymph is a tissue that diffuses into the lymphatic capillaries
Most gas exchange between blood and tissues takes place in the capillaries. This is where oxygen diffuses from the blood into the tissues, and where carbon dioxide diffuses from the tissues into the blood. The thin walls of the capillaries allow for efficient exchange of gases.
Red blood cells does not have a direct contact with the body cells.A substance called the tissue fluid does.It leaks out from the blood capillaries carrying oxygen and food substance to the body cells.It then carry waste materials out of the body cells.However, some of this substance does return to the blood while some are collected in the lymph vessel.The tissue fluid in the lymph vessel is called lymph.
Diapedesis
Capillaries
chyme
Tissue without capillaries is called avascular tissue. Examples of avascular tissue include:CartilageEpitheliaCorneaLensAll organs contain blood vessels.
This type of respiration is called internal respiration. In internal respiration, oxygen diffuses from the bloodstream into the cells of tissues, while carbon dioxide diffuses from the cells into the bloodstream.
Co2
yes
filtration