Encyclopedia entry
Gluteus Medius
Abstract
This muscle may be divided into two lamallae, or the deeper fibers may end on a separate tendon that inserts into the upper border of the greater trochanter. The muscle may supply slips that join the tendon of piriformis. A gluteus medius accessorius has been described as arising from the iliac crest under tensor fasciae latae and gluteus medius and inserting on the greater trochanter, partly with medius and partly independently. Gluteus quartus (gluteus scansorius) is a rare muscle arising between gluteus medius and minimus and inserting onto the tip of the greater trochanter.
This muscle may be divided into two lamallae, or the deeper fibers may end on a separate tendon that inserts into the upper border of the greater trochanter. The muscle may supply slips that join the tendon of piriformis.
A gluteus medius accessorius has been described as arising from the iliac crest under tensor fasciae latae and gluteus medius and inserting on the greater trochanter, partly with medius and partly independently.
Gluteus quartus (gluteus scansorius) is a rare muscle arising between gluteus medius and minimus and inserting onto the tip of the greater trochanter. A gluteoperinealis muscle has also been reported by Gruber.
Syn.: m. gluteus secundu, iliacus externus (M.J. Weber), Mittlerer Gesässmuskel, moyen fessier.

Gluteoperinealis.
- alpha, alpha', aponeurosis, origin of gluteoperinealis; Beta, Beta', belly of the same muscle; gamma, gamma', insertion of gluteoperinealis. 1, os coccyx; 2, ischial tuberosities; 3, anus; 4, penis. a,a' gluteus maximus.
from Gruber. — Anatomy Atlases. Image hosted by the site it comes from. Open the original page.
Riferimenti dell’opera originale
Elenco riportato come compare nella fonte, senza normalizzazione dei formati bibliografici.
- Gruber, W. (1878) Über den Gesäss-Mittelfleischmuskel (Musculus gluteo-perinealis). Arch. Path. Anat. Physiol. Klin. Med. 74:456-460.
- Jazuta, K.M. (1931) Glutaeus medius accessorius. Anat. Anz. 72:10-11.
- Macalister, A. (1875) Observations on 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.
- Valenti, G. (1910) Sur un muscle fessier surnuméraire. Arch. Ital. Biol. 53:153.
Anatomical classification
- Systems:
- Muscular system
Content provenance
Adaptation
Adaptation of «Gluteus Medius — Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System» by Ronald A. Bergman, Adel K. Afifi, Ryosuke Miyauchi. Source: https://www.anatomyatlases.org/AnatomicVariants/MuscularSystem/Text/G/10Gluteus.shtml Original work distributed under the CC BY-NC-SA 4.0 licence (https://creativecommons.org/licenses/by-nc-sa/4.0/deed.it). Adaptation by Redazione AIVA. Changes from the original: Testo originale inglese riprodotto integralmente e riorganizzato nel formato scheda del portale (sintesi, testo, riferimenti), senza modificarne le affermazioni. La traduzione italiana non è ancora stata eseguita, e la pagina lo dichiara. Le figure non sono state copiate: sono collegate alla pagina d’origine. This publication is not approved or endorsed by the authors of the original work.
Licence
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