Question

• Explain why there is a distance limit for cells in terms of proximity to vessels

Answer 1

The cells and the blood vessels reside in close proximity to each other in the body. However, there occurs a minor gap between these two elements in order to ensure certain homeostatic mechanisms. The blood vessels are not perfectly impermeable vessels by nature. In fact, a small amount of liquid medium is always protruded out of the vessels which is necessary to be collected in the body in order to maintain the optimum volume of liquids in the body. Hence, the extremely small spaces localized between the cells of different tissues/organs and the vessels ensures that the liquid seeped out of the vessels would be collected in the spaces and immediately re-collected in another system of vessles called the lymphatic system.

Further, there remains absolute necessity of neovascularization and sproting of new blood vessels/capillaries at different parts of the tissues. Thus, a minute three-dimensional space is required for these new vessels to get accomodated into.

Thus, this explains the necessity for maintenance of a distance limit from the cells in terms of their proximiy to the vessels.