Details

Autor(en) / Beteiligte

• May, Christian Albrecht
• Mätz‐Rensing, Kerstin
• Aschoff, Daniel
• Bramke, Silvia

Titel

Muscle spindles in the rhesus monkey platysma

Ist Teil von

• Journal of anatomy, 2022-05, Vol.240 (5), p.936-940

Ort / Verlag

England: Wiley Subscription Services, Inc

Erscheinungsjahr

2022

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• The platysma of the rhesus monkey consists of two parts: a platysma myoides located similar to the human platysma, and a platysma cervicale passing the dorsal cervical region and being in contact with the cheek pouch. Our investigation showed that the muscle fiber morphology was comparable in both parts. Muscle spindles were only present in regions connected to the cheek pouch and contained only nuclear chain fibers. It is tempting to speculate that they sense the filling of the cheek pouch rather than mimic activities. Macroscopic appearance of a left in situ (A) and extracted (B) platysma (7‐year‐old male rhesus monkey): note the compact platysma cervicale (double‐headed arrow) covering partly the cheek pouch (asterisk). The platysma myoides (white arrowheads) forms single muscle bundles separated by connective tissue strains. Single pure‐nuclear‐chain fiber muscle spindles (C) were in close association to the cheek pouch.