Perforating cutaneous nerve
| Perforating cutaneous nerve | |
|---|---|
 Plan of sacral and pudendal plexuses. | |
 Cutaneous nerves of the right lower extremity. Front and posterior views. (Perforating cutaneous nerve not labeled, but region visible.) | |
| Details | |
| From | S2-S3,[1] Sacral plexus |
| Innervates | gluteal sulcus |
| Identifiers | |
| Latin | nervus cutaneus perforans |
| TA98 | A14.2.07.036 |
| TA2 | 6546 |
| FMA | 19040 |
| Anatomical terms of neuroanatomy | |
The perforating cutaneous nerve is a cutaneous nerve that supplies skin over the gluteus maximus muscle.
Structure
The perforating cutaneous nerve arises from the ventral rami of sacral spinal nerve 2 and sacral spinel nerve 3 of the sacral plexus.[2][3] It pierces the lower part of the sacrotuberous ligament.[2][3] It winds around the inferior border of the gluteus maximus muscle.[2][3]
Variation
The perforating cutaneous nerve may arise from the pudendal nerve.[2] It may be absent.[2] It is estimated to be absent in up to a third of people.[citation needed] It may be replaced by a branch from the posterior cutaneous nerve of thigh.[2] It may also be replaced by a branch from the third and fourth, or fourth and fifth, sacral nerves.[2]
The perforating cutaneous may pass around the sacrotuberous ligament (beneath gluteus maximus muscle) rather than piercing it.[3]
Function
The perforating cutaneous nerve supplies the skin covering the medial and lower parts of gluteus maximus.[3]
See also
References
This article incorporates text in the public domain from page 967 of the 20th edition of Gray's Anatomy (1918)
- ^ Adam Mitchell; Drake, Richard; Gray, Henry David; Wayne Vogl (2005). Gray's anatomy for students. Elsevier/Churchill Livingstone. p. 423. ISBN 0-443-06612-4.
- ^ a b c d e f g Mirjalili, S. Ali (2015). "Chapter 46 - Anatomy of the Sacral Plexus L4-S4". Nerves and Nerve Injuries. Vol. 1: History, Embryology, Anatomy, Imaging, and Diagnostics. Academic Press. pp. 619–626. doi:10.1016/B978-0-12-410390-0.00048-2. ISBN 978-0-12-410390-0.
- ^ a b c d e Apaydin, Nihal (2015). "Chapter 47 - Variations of the Lumbar and Sacral Plexuses and Their Branches". Nerves and Nerve Injuries (1: History, Embryology, Anatomy, Imaging, and Diagnostics ed.). Academic Press. pp. 627–645. doi:10.1016/B978-0-12-410390-0.00049-4. ISBN 978-0-12-410390-0.
External links
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