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Adductor Magnus Muscle Anatomy Overview

The adductor magnus is the largest, most powerful, and most posterior muscle in the adductor group of the medial compartment of the thigh.

The adductor group, consisting of the adductor longus, adductor brevis, adductor magnus, gracilis, and obturator externus. In general, they attach proximally to the antero-inferior external surface of the bony pelvis (pubic bone, ischiopubic ramus, and ischial tuberosity), and adjacent obturator membrane, and distally to the linea aspera of the femur.

See Also: Gracilis Muscle Anatomy

Adductor Magnus Muscle Anatomy

The Adductor Magnus Muscle is a composite, triangular muscle with a thick, medial margin that has an adductor part and a hamstring part. The two parts differ in their attachments, nerve supply, and main actions.

The adductor part fans out widely for aponeurotic distal attachment along the entire length of the linea aspera of the femur, extending inferiorly onto the medial supracondylar ridge. The hamstring part has a tendinous distal attachment to the adductor tubercle.

All adductor muscles, except the “hamstring part” of the adductor magnus and part of the pectineus, are supplied by the obturator nerve (L2–L4). The hamstring part of the adductor magnus is supplied by the tibial part of the sciatic nerve (L4).

See Also: Hamstring Muscles
See Also: Hamstring Strain
Adductor Magnus Muscle anatomy
OriginInferior pubic ramus
ischial ramus
inferolateral area of ischial tuberosity
InsertionGluteal tuberosity of femur
Medial lip of linea aspera
Medial supracondylar ridge,
Adductor tubercle
InnervationPosterior division of obturator nerve innervates most of the adductor magnus;
vertical or hamstring portion innervated by tibial nerve (L2, L3, L4)
Blood SupplyMedial circumflex femoral artery
Inferior gluteal artery
1st – 4th perforating arteries
Obturator artery
Some superior muscular branches of popliteal artery
ActionPowerful thigh adductor;
Superior horizontal fibers also help flex the thigh, while vertical fibers help extend the thigh

References & More

  1. Clinically Oriented Anatomy, 8th Edition
  2. Jeno SH, Launico MV, Schindler GS. Anatomy, Bony Pelvis and Lower Limb: Thigh Adductor Magnus Muscle. [Updated 2023 Oct 24]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK534842/
Last Reviewed
February 7, 2024
Contributed by
OrthoFixar

Orthofixar does not endorse any treatments, procedures, products, or physicians referenced herein. This information is provided as an educational service and is not intended to serve as medical advice.

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