SUPRACORACOIDEUS Meaning and
Definition
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The supracoracoideus is a term used in anatomy and zoology to refer to a specific muscle located in the avian (bird) wing. It is considered to be one of the major muscles involved in powering the flapping motion of bird flight.
The word "supracoracoideus" derives from the Latin roots "supra," meaning above or over, and "coracoideus," referring to the coracoid bone, a structure found in the shoulder region. This name accurately describes the muscle's position as it lies above the coracoid bone in the avian anatomy.
The supracoracoideus muscle originates from the ventral (underside) surface of the coracoid bone and attaches to the humerus bone in the upper arm. It works in combination with the pectoralis major muscle, which is responsible for the downward stroke of the wing during flight. While the pectoralis major muscle powers the downward wing motion, the supracoracoideus muscle functions to elevate the wing during the upward stroke.
The supracoracoideus muscle is instrumental in avian flight as it helps generate the necessary lift and thrust required for birds to stay airborne. Its contraction allows for the rotation and elevation of the humerus bone, which facilitates the upward movement of the wings.
Overall, the supracoracoideus is a vital muscle in bird flight, enabling birds to achieve the complex and coordinated movements needed for efficient aerial locomotion.
Etymology of SUPRACORACOIDEUS
The word "supracoracoideus" is derived from Latin and Greek roots.
- "Supra-" is a Latin prefix meaning "above" or "over".
- "Coracoideus" is a Latin term derived from the Greek word "korakoeides", which means "resembling a raven's beak". "Korax" means "raven" and "eidos" means "shape" or "form".
Therefore, "supracoracoideus" refers to a muscle situated above or over the coracoid process, which is a specific bony structure found in the shoulder region of many vertebrates, including birds. This muscle is responsible for lifting the wing during flight in birds.
