Definitions for deltoid muscle
This page provides all possible meanings and translations of the word deltoid muscle
deltoid, deltoid muscle, musculus deltoideus(noun)
a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm
A triangular muscle on the human shoulder.
Origin: Short for deltoideus + muscle. Previously the deltoideus muscle and musculus deltoideus.
In human anatomy, the deltoid muscle is the muscle forming the rounded contour of the shoulder. Anatomically, it appears to be made up of three distinct sets of fibers though electromyography suggests that it consists of at least seven groups that can be independently coordinated by the central nervous system. It was previously called the deltoideus and the name is still used by some anatomists. It is called so because it is in the shape of the Greek letter Delta. It is also known as the common shoulder muscle, particularly in lower animals. Deltoid is also further shortened in slang as "delt". The plural forms of all three incarnations are deltoidei, deltoids and delts. A study of 30 shoulders revealed an average weight of 191.9 grams in humans.
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"deltoid muscle." Definitions.net. STANDS4 LLC, 2016. Web. 12 Feb. 2016. <http://www.definitions.net/definition/deltoid muscle>.