What secretions are released into interstitial space to diffuse into the blood?

Answer

             The secretions that are released into intestinal space to diffuse into the blood is called lymph.

Definition

                 Lymph is a biological fluid produced as the effluent of intestinal fluid from parenchymatous organs.

Formation of lymph

                     In every parenchymal organ the interstitial fluid is formed by products of cellular secretions, metabolism/ catabolism as well as solute, molecules and proteins that extravasate from blood capillaries. Lymphatic capillaries have one open blunt-end, which facilitates drainage of the interstitial fluid and the movement of immune cells and apoptotic cells into the lymphatic circulation. The other end will coalesce into a lymphatic collector. Additionally gaps between lymphatic endothelial cells, which function as a one-way valve, further facilitate cell and solute collection into the lymphatic capillaries .

Role of lymph

                  It controls different functions such as maintenance on immunity tolerance, autoimmunity, inflammation, cancer metastasis, cardiovascular and metabolic disorders.

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