What is the difference between tissue fluid and lymph

The lymphatic system consists of a fluid lymph , vessels that transport the lymph, and organs that contain lymphoid tissue. Lymph is a fluid similar in composition to blood plasma. It is derived from blood plasma as fluids pass through capillary walls at the arterial end.

As the interstitial fluid begins to accumulate, it is picked up and removed by tiny lymphatic vessels and returned to the blood. As soon as the interstitial fluid enters the lymph capillaries , it is called lymph. Returning the fluid to the blood prevents edema and helps to maintain normal blood volume and pressure. Lymphatic vessels, unlike blood vessels, only carry fluid away from the tissues.

Nutrients such as glucose and amino acids as well as oxygen are pushed out from the blood into the tissue fluid. These nutrients are taken up by cells in the tissue. Most of the fluid is taken up to the capillaries at their venule end.

The rest of the fluid is collected by the lymphatic system. The lymph is similar to the tissue fluid. This is the relationship between tissue fluid and lymph. What is Lymph — Definition, Formation, Function 3. The tissue fluid is the extracellular fluid that bathes and surrounds the tissue cells of multicellular animals.

It arrives via blood capillaries and is removed via the lymphatic vessels. The tissue fluid is also called the interstitial fluid. The high hydrostatic pressure of blood at the arteriole end of the capillary allows the fluid to push out from the capillaries. Glucose, fatty acids, nucleic acids , amino acids, salts, minerals, and water in the blood are pushed out through capillaries into the tissue fluid and are uptaken by cells in the tissue. Neither red blood cells nor large proteins leave the blood at capillaries.

However, white blood cells can migrate into the tissue fluid. After losing fluid at the capillaries, the hydrostatic pressure is low at the venule end of the capillary and the solute concentration is high. Therefore, fluid drains back into the capillary along with the metabolic wastes such as urea and carbon dioxide at their venule ends. The formation of tissue fluid and lymph is shown in figure 1. Figure 1: Tissue Fluid and Lymph. The lymph is an alkaline fluid, which is originated from the tissue fluid.

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