The human platysma contains numerous muscle spindles. Issue 1 (3rd November 2017)

• Record Type: Journal Article
• Authors: May, Astrid; Bramke, Silvia; Funk, Richard H. W.; May, Christian Albrecht
• Is Part Of: Journal of anatomy. Volume 232:Issue 1(2018)
• Page Start: 146
• Page End: 151
• Publication Date: 2017-11-03
• Subjects: distribution -- immunohistochemistry -- platysma -- striated muscle; Anatomy -- Periodicals; 571.3
• DOI: 10.1111/joa.12724
• Languages: English
• ISSNs: 0021-8782

Abstract

Abstract: The mimic muscles are usually described as containing no muscle spindles. In the present publication the human platysma was reinvestigated concerning its content of corpuscular sensors. Serial sections through the platysma of seven donors revealed numerous muscle spindles but no Pacini corpuscules. The muscle spindles were located in the cranial two‐thirds of the platysma, and were evenly distributed with a tendency to have more spindles in the lateral part of the muscle. Immunohistochemical staining with S46 antibodies revealed a predominance of nuclear bag fibers. The results point to an extended function of the platysma as an afferent center of the lower face mimic muscles.