sternocleidomastoid muscles

A form of sternocleidomastoid muscle — A long thick superficial muscles on each side of the anterior neck which arises by one head from the first segment of the sternum and by a second from the inner part of the clavicle, that inserts into the mastoid process of the temporal bone and that acts especially to bend, flex, rotate and extend the head.

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Meanings

noun
  1. pluralplural of sternocleidomastoid muscle
Cite this entry
APA

sternocleidomastoid muscles. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/sternocleidomastoid%20muscles

MLA

“sternocleidomastoid muscles.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sternocleidomastoid%20muscles. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “sternocleidomastoid muscles,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/sternocleidomastoid%20muscles.

Source: sternocleidomastoid muscles on Wiktionary, CC BY-SA 4.0.