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deltoid muscle

deltoid muscle in Medicine

deltoid muscle n.
A muscle with origin from the lateral third of the clavicle, the lateral border of acromion process, and the lower border of spine of scapula, with insertion to the side of the shaft of the humerus, with nerve supply from the axillary nerve from the fifth and sixth cervical nerves through the brachial plexus, and whose action causes the abduction, flexion, extension, and rotation of the arm.

The American HeritageĀ® Stedman's Medical Dictionary
Copyright Ā© 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Examples from the Web for deltoid muscle
Historical Examples
  • I imagined that I could detect, at the height of my deltoid muscle, the exact spot where the sleeve of her under-garment ended.

    The Confession of a Fool August Strindberg
  • As she stood, turned sideways to him, one hand on her hip, the deltoid muscle was at once contracted and foreshortened.

    Vandover and the Brute Frank Norris
  • The outer aspect of the arm near the insertion of the deltoid muscle is a favorite site for puncture.

  • The deltoid muscle, for example, is smaller in Bombycilla than in members of the other two subfamilies.

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