MESANEPISTERNUM Meaning and
Definition
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Mesanepisternum is a compound noun primarily used in entomology to define a specific anatomical feature found in insects. Specifically, the term refers to a particular region located on the lateral sides of the thorax, between the mesepisternum and the metasternum. It applies specifically to insects belonging to the order Diptera (true flies), as well as some other insect orders.
The mesanepisternum is part of the insect's exoskeleton or external skeleton, which provides support and protection to the internal organs. It is often thin and flat in shape, forming a triangular or trapezoidal area on the thorax. Its precise size, shape, and characteristics may vary among different insect species.
The exact function of the mesanepisternum is not fully understood but it is believed to serve as an attachment point for various muscles associated with the insect's flight and locomotion. Additionally, it may play a role in maintaining stability during movement and providing structural support.
The term "mesanepisternum" is derived from Greek origins, with "mes-" meaning "middle" or "between," "nepi-" meaning "rib" or "side," and "sternon" referring to the chest or breastbone. This compound noun, therefore, encapsulates the anatomical location and function of this particular feature on an insect's thorax.
Etymology of MESANEPISTERNUM
The word "mesanepisternum" is derived from two Greek roots: "meso-" meaning middle or intermediate, and "nepi-" meaning kidney or kidney-shaped. "Sternum" refers to the breastbone, a flat bone located in the middle of the chest. Therefore, the etymology of "mesanepisternum" combines these roots to describe a particular intermediate portion of the sternum that is shaped like a kidney.
