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platysma
platysma (plæˈtɪzmə) n1. (Anatomy) anatomy a muscle located on the side of the neck2. (Medicine) med obsolete a wide bandageThesaurus| Noun | 1. |  platysma - either of two broad muscles located on either side of the neck and innervated by the facial nerve; extends from lower jaw to clavicle and is involved in moving the mouth and jawfacial muscle - any of the skeletal muscles of the face |
platysma
platysma[plə′tiz·mə] (anatomy) A subcutaneous muscle of the neck, extending from the face to the clavicle; muscle of facial expression. platysma
platysma [plah-tiz´mah] a subcutaneous neck muscle extending from the neck to the clavicle, acting to wrinkle the skin of the neck and to depress the jaw. See Appendix 3-4.pla·tys·ma (mus·cle) [TA] facial muscle in neck region; origin, subcutaneous layer and fascia covering pectoralis major and deltoid at level of first or second rib; insertion, lower border of mandible, risorius and platysma of opposite side; action, depresses lower lip, forms ridges in skin of neck and upper chest when jaws are "clenched", denoting stress, anger; nerve supply, cervical branch of facial. Synonym(s): platysma [TA], musculus platysma myoides, musculus platysma, musculus subcutaneus colli, musculus tetragonuspla·tys·ma mus·cle (plă-tiz'mă mŭs'ĕl) Origin, subcutaneous layer and fascia covering pectoralis major and deltoid at level of first or second rib; insertion, lower border of mandible, risorius, and platysma of opposite side; action, depresses lower lip, forms ridges in skin of neck and upper chest when jaws are "clenched," denoting stress, anger; nerve supply, cervical branch of facial.
Synonym(s): platysma [TA] . platysma The broad, flat muscle lying immediately under the skin of the neck, from the shoulders to the point of the chin. The action of the platysma is to tighten the skin of the neck, pull down the corners of the mouth and lower the jaw.pla·tys·ma mus·cle (plă-tiz'mă mŭs'ĕl) Origin, subcutaneous layer and fascia covering pectoralis major and deltoid at level of first or second rib; insertion, lower border of mandible, risorius, and platysma of opposite side; action, depresses lower lip, forms ridges in skin of neck and upper chest when jaws are "clenched," denoting stress, anger; nerve supply, cervical branch of facial.
Synonym(s): platysma [TA] . platysma
Related to platysma: sternocleidomastoidWords related to platysmanoun either of two broad muscles located on either side of the neck and innervated by the facial nerveRelated Words |