Name

# Gluteus Medius

Pronunciation

(GLOO -te-us ME-de-us)

Origin/Proximal Attachment

Outer aspect of ilium (between iliac crest & anterior & posterior gluteal lines); upper fascia (gluteal aponeurosis)

Insertion/Distal Attachment

Superior aspect of greater trochanter

Action/Relevance

Anterior & lateral fibres abduct & internally rotate the thigh

Posterior fibres may externally rotate thigh

Stabilizes pelvis especially during gait cycle

Innervation

Superior Gluteal nerve (L4, 5,S1)

Notes

Broad thick muscle.

Posterior third is covered by glut max.

Ant 2/3 covered only by a strong fascial layer.