Inferior gemellus muscle
Musculus gemellus inferior
- Synonym: Gemellus inferior muscle
- Related terms: Gemellus inferior; Inferior gemellus
Definition
Origin: Ischial tuberosity
Insertion: Obturator internus tendon
Nerve: Nerve to Quadratus femoris (L4, L5, S1)
Action: Rotates laterally thigh
Description:
The Gemelli are two small muscular fasciculi, accessories to the tendon of the Obturator internus which is received into a groove between them.
The Gemellus inferior arises from the upper part of the tuberosity of the ischium, immediately below the groove for the Obturator internus tendon. It blends with the lower part of the tendon of the Obturator internus, and is inserted with it it into the medial surface of the greater trochanter. Rarely absent.
References
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
