Pudendal Nerve (S2-S4)

Authors

Affiliations

Nate Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Roots

S2, S3, S4¹

Pathway

Thru alcocks canal
Post/med to ant lateral:
NAVN
- Pudendal Nerve
- Internal pudendal Artery and then Vein
- Nerve to obt internus

Motor innervation

Nerve to Quadratus Femoris Muscle Innervations
Muscle	Origin	Insertion	Innervation	Action
Inferior Gemellus	Ischial tuberosity¹ [Ischial tuberosity](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/inferior_gemellus_muscle.qmd#origin) [@gilroyAtlasAnatomy2020]	Medial surface of greater trochanter via obturator internus tendon¹ [Medial surface of greater trochanter via obturator internus tendon](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/inferior_gemellus_muscle.qmd#insertion) [@gilroyAtlasAnatomy2020]	Nerve to Quadratus femoris^1,2 L5 - S1¹ [Nerve to Quadratus femoris](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/inferior_gemellus_muscle.qmd#nerve) [@gilroyAtlasAnatomy2020; @aungAnatomicalStudyObturator2001] [L5](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/inferior_gemellus_muscle.qmd#nerve) - [S1](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/inferior_gemellus_muscle.qmd#nerve) [@gilroyAtlasAnatomy2020]	Hip [ER](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/inferior_gemellus_muscle.qmd#action) [@gilroyAtlasAnatomy2020] [Extension](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/inferior_gemellus_muscle.qmd#action) [@gilroyAtlasAnatomy2020] [Abduction](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/inferior_gemellus_muscle.qmd#action) [@gilroyAtlasAnatomy2020]
Quadratus femoris	Lateral border of Ischial tuberosity¹ [Lateral border of Ischial tuberosity](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/quadratus_femoris_muscle.qmd#origin) [@gilroyAtlasAnatomy2020]	Intertrochanteric crest¹ [Intertrochanteric crest](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/quadratus_femoris_muscle.qmd#insertion) [@gilroyAtlasAnatomy2020]	Nerve to Quadratus femoris¹ L5 - S1¹ [Nerve to Quadratus femoris](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/quadratus_femoris_muscle.qmd#nerve) [@gilroyAtlasAnatomy2020] [L5](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/quadratus_femoris_muscle.qmd#nerve) - S1 [@gilroyAtlasAnatomy2020]	Hip [ER](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Gluteal Muscles/quadratus_femoris_muscle.qmd#action) [@gilroyAtlasAnatomy2020]

Direct Branches

Cutaneous Innervation

Dysfunction

Deep gluteal syndrome is an increasingly recognized disease entity, caused by compression of the sciatic or pudendal nerve due to non-discogenic pelvic lesions

References

Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.

Aung HH, Sakamoto H, Akita K, Sato T. Anatomical study of the obturator internus, gemelli and quadratus femoris muscles with special reference to their innervation. The Anatomical Record. 2001;263(1):41-52. doi:10.1002/ar.1075

Citation

For attribution, please cite this work as:

Yomogida N, Kerstein C. Pudendal Nerve (S2-S4). https://yomokerst.com/The Archive/Anatomy/Nerves/Lumbosacral Plexus/Sacral Plexus/pudendal_nerve.html