Perforating cutaneous nerve
|Nerve: Perforating cutaneous nerve|
|Plan of sacral and pudendal plexuses.|
|Diagram of the segmental distribution of the cutaneous nerves of the right lower extremity. Posterior view. (Perforating cutaneous nerve not labeled, but region visible.)|
|Latin||nervus cutaneus perforans|
|Gray's||subject #213 967|
|From||S2-S3, Sacral plexus|
The perforating cutaneous nerve arises from the sacral plexus. It pierces the lower part of the sacrotuberous ligament, and winds around the inferior border of the gluteus maximus. It is an inferior clunial (buttocks) nerve; it supplies the skin covering the medial and lower parts of gluteus maximus.
The perforating cutaneous nerve may arise from the pudendal nerve. It is absent in approximately one third of people; its place may be taken by a branch from the posterior cutaneous nerve of thigh or by a branch from the third and fourth, or fourth and fifth, sacral nerves.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.