ABSORBENT VESSELS Meaning and
Definition
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Absorbent vessels, also known as lymphatic vessels or lymphatics, are a network of small thin-walled tubes that form a part of the lymphatic system. These vessels are responsible for the transportation of lymph, a colorless fluid that contains white blood cells, proteins, and waste materials from the body's tissues.
The primary function of absorbent vessels is to absorb excess interstitial fluid from the body tissues. As blood circulates through the capillaries, some fluid and small molecules leak out into the surrounding tissues. The absorbent vessels collect this excess fluid, called lymph, along with any waste products or cellular debris, and transport it back to the bloodstream.
Absorbent vessels have a structure similar to blood capillaries, with thin endothelial cells forming their walls. Unlike blood vessels, absorbent vessels have one-way valves that prevent the backflow of lymph and ensure a unidirectional flow towards larger lymphatic vessels called lymph ducts.
Along their path, absorbent vessels pass through lymph nodes, which are small bean-shaped structures that filter the lymph and trap foreign particles such as bacteria and viruses. The lymph nodes contain specialized cells that help to identify and fight off infections or any abnormalities.
Overall, absorbent vessels play a crucial role in maintaining fluid balance within the body and are essential for immune function. Dysfunction or blockage of these vessels can lead to lymphedema, a condition characterized by swelling and fluid retention in the affected areas.
Etymology of ABSORBENT VESSELS
The term "absorbent vessels" is not a commonly used term in modern English. However, in some medical, anatomical, or historical texts, it can refer to certain vessels or structures in the body that are involved in absorption or transportation of fluids. The term is most likely a translation or adaptation of an older anatomical or medical term.
The etymology of "absorbent" comes from the Latin word "absorbere", which means "to suck in" or "to swallow up". It is derived from "ab-" meaning "away" and "sorbere" meaning "to suck". The word "vessels" typically refers to channels or tubes that transport fluids within the body.
