| 释义 |
‖ platysma|pləˈtɪzmə|
[mod.L., a. Gr. πλάτυσµα flat piece, plate, flat cake, f. πλατύνειν to widen, f. πλατύ-ς broad, flat.]
†1. Med. (See quot.) Obs. (or never in Eng. use.)
1693Blancard's Phys. Dict. (ed. 2), Platisma, a broad Linnen-cloth put upon Sores. 1704in J. Harris Lex. Techn. I. 1895 in Syd. Soc. Lex.
2. Anat. (In full, platysma myoides or platysma myodes: see myoid.) A thin broad layer of muscular fibres just beneath the skin on each side of the neck in man, extending from the shoulder and collar-bone to the face; corresponding to the panniculus carnosus (see pannicle 1) of some quadrupeds.
1693Blancard's Phys. Dict. (ed. 2), Platysma Myodes. 1804Abernethy Surg. Obs. (1827) 52 A man..had a large tumour on the side of his neck, beneath the platysma myoides. 1840G. V. Ellis Anat. 70 The facial artery..is covered, at first, by the platysma. 1899Allbutt's Syst. Med. VII. 290 The fits began with spasm in the right platysma, and were frequently confined to this muscle. |