Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System: Alphabetical Listing of Muscles: T: Transversus Perinei Superficialis

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Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System: Alphabetical Listing of Muscles: T

Transversus Perinei Superficialis

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed

This muscle is frequently absent or poorly developed. Sometimes it consists of several separate fasciculi, and it may be inserted wholly or in large part into the bulbocavernosus or external anal sphincter.

A muscular slip is occasionally found arising from the fascia at the lower border of gluteus maximus or upper fascia lata and inserts under the origin of bulbocavernosus in the albuginea of the bulbous (penile) urethra in males. This variation is not found in females.

References

Broca, -. (1851) Anomalie du muscle transverse du perinée. Bulletins et Mem. de la Société Anatomique de Paris XXVI)7):230.

Gruber, W. (1876) Über einen anomalen Musculus transversus perinei superficialis. Arch. Path. Anat. Physiol. Klin. Med. 67:353-358.

Gruber, W. (1876) Neuer Fall eines ausserhalb des Regio perinealis entsprungenen Musculus transversus perinei superficialis. Arch. Path. Anat. Physiol. Klin. Med. 68:287-290.

Macalister, A. (1871) Observations on the muscular anomalies in the human anatomy. Third series with a catalogue of the principal muscular variations hitherto published. Trans. Roy. Irish Acad. Sci. 25:1-130.

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