Muscles of the pelvic outlet in the rhesus monkey (Macaca mulatta) with special reference to nerve supply

The Anatomical Record
K AkitaT Sato

Abstract

The manner of innervation of the muscles of the inferior limb, pelvic outlet, and tail in rhesus monkey (Macaca mulatta) was investigated in detail in 11 pelvic halves of four males and two females. The origins of the pudendal nerve were widespread and overlapped the sacral plexus. After removal of the bone structures, detailed dissection revealed the origin of the pudendal nerve to ventrocaudally overlap the sacral plexus. This dorsoventral branching pattern between the sacral plexus and the pudendal nerve is similar to that in Urodela (Akita, 1992b), Lacertilia (Akita, 1992a) and Aves (Akita et al., 1992a), and is a basis for morphological understanding of the muscles of the pelvic outlet. The muscles of the pelvic outlet consist of the levator, sphincter, and tail muscle groups, based on the stratification of the supplying nerves the former two groups likely derive from the ventral muscles of the inferior limb, and the latter group from the ventral caudal (trunk) muscles.

Citations

Apr 17, 2008·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·Kumiko YamaguchiKeiichi Akita
Sep 2, 2006·Obstetrics and Gynecology·C WallnerM C DeRuiter
Jun 15, 2010·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Hitoshi NiikuraChun Ai Li
Aug 25, 2017·Scientific Reports·Margaret I HallJeffrey H Plochocki

Related Concepts

Anatomy, Artistic
Leg
Lumbar Plexus Structure
Macaca mulatta
Medical Illustration
Muscle
Pelvis
Tail

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