Muscles of medial group of thigh

Muscles of medial group of thigh

Muscle	Origin	insertion	nerve	action	comment
Obturator externus	Ischiopubic rami, obturator memb	Piriformis fossa	Obturator	ER thigh	Insetion at start point of IM nail
Hip adductors
Adductor longus	Body of pubis(inferior)	Linea aspera(mid 1/3)	Obturator	Adducts thigh	Tendon can ossify
Adductor brevis	Body and inferior pubic ramus	Pectineal line, linea aspera	Obturator	Adducts thigh	Deep to pectineus
Adductor magnus	1.     Pubic ramus 2.     Ischial tub.	Linea aspera, add. tubercle	1.     Obturator 2.     sciatic	Adducts & flex/extend thigh	Muscle has two sepatate parts
Gracilis	Body and inferior pubic ramus	Prox. Med. Tibia(pes anserinus)	Obturator	Adduct thigh, flex/IR leg	Used in ligament reconstruction
Hip Flexors
Pectineus	Pectineal line of pubis	Pectineal line of femur	Femoral	Flex and adducts thigh	Part of femoral triangle floor

Ref) Netter’s concise orthopaedic anatomy P267