| Lymphatic capillary is the most base of lymphatic system , whatever aspects of anatomy or physiology , study of lymphatic system need commence with comprehend lymphatic capillary . lymphatic capillary is first section of lymphatic vessel, it lie in interstitial fluid . lymphatic capillary is being with bigger cecum, and every lymphatic capillary is anastomotic with others, they consist of graticule, and then abouchement lymphatic vessels together. In order to special Structure of lymphatic capillary, the permeability of pipe wall is better powerful as blood capillary, therefore, a part of substances will ture into lymphatic capillary, for example protein,fragments of cell,eyewinker,bacilli and tumor cell. Therefore, study of infiltration fluid about lymphatic capillary redound to development of medicine, especially redound to diagnoses disease in relation to lymphatic vessel and be helpful to advancement of technology of prevention and cure.About infiltration of lymphatic fluid in lymphatic capillary, investigations have always be done well ample in relation to medicine,physiology and hydromechanical. however, in porous medium standpoint, the study of biotic seepage is far from what the people excepted.In the article, I adopted electron microscopic figures of lymphatic capillary in realation to the organs of the rat, rabbit, pig , and on a base of investigations, aperture lymphatic capillary was been analyzed and researched, and then, specific surface of lymphatic capillary was been investigated through calculational methods,, Thought the investigation, comprehend relevant organ of lymphatic capillary in human baby more than before.. As a result, it is unambiguous to prove that lymphatic capillary are provided with essential character of the porous medium. It is both aperture is minification and specific surface is large. Therefore, lymphatic capillary can be affirmed that it is porous medium, and flowage of lymphatic fluid in lymphatic capillary belong to infiltration flow, It can be approached as mechanics of infiltration flow. In the article, separating lymphatic capillary and lymphatic fluid into two spaces, the two spaces are been controlled by two different control equations with mechanics of infiltration flow. In interface, fluxion of the two spaces don't contacteach other, according to Starling's formula, mass exchange have been taken place in interface of the spaces. Considering above-mentioned contents, model of infiltration flow are separate into two part. The first part is about lymphatic fluid of lymphatic capillary, the second part is about tissue fluid of tissue. The prosses of solving, the first part can be worked out though calculational methods about ordinary differential equation, from calculational result, seepage accord with Starling's law from lymphatic fluid in lymphatic capillary to tissue, proving that model of infiltration flow is positive with regard to lymohatic fluid of lymphatic capillary. The second part need numerical simulation though using COMSOL software package, and result basically exactly accord with lymphatic system's law about microcirculation in human body,proving that model of infiltration flow is positive with regard to tissue fluid in tissue. |
