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The adductor magnus is a large triangular muscle, situated on the medial side of the thigh.. It consists of two parts. The portion which arises from the ischiopubic ramus (a small part of the inferior ramus of the pubis, and the inferior ramus of the ischium) is called the pubofemoral portion, adductor portion, or adductor minimus, and the portion arising from the tuberosity of the ischium is ...
The muscles in the compartment are: gracilis; adductor longus; adductor brevis; adductor magnus; The obturator externus muscle is sometimes considered part of this group, [1] [2] [3] and sometimes excluded. [4] (Spatially, it is in this location, but functionally, it is more similar to the other lateral rotator group muscles).
Green is the medial compartment (gracilis and adductor magnus), blue is the posterior (semimembrosus to biceps c. brevis) and red is the anterior (vastus lateralis to sartorius). The fascial compartments of thigh are the three fascial compartments that divide and contain the thigh muscles .
The pectineus is the only adductor muscle that is innervated by the femoral nerve. The other adductor muscles are innervated by the obturator nerve [1] with the exception of a small part of the adductor magnus which is innervated by the tibial nerve. [4]
The nerve travels in the posterior compartment of the thigh behind (superficial to) the adductor magnus muscle and is itself in front of (deep to) the long head of the biceps femoris muscle. At the popliteal fossa, the nerve divides into its two branches: [1]: 532
An adductor hiatus is described as oval or bridging depending on the shape of the upper boundary. It can also be described as muscular or fibrous depending on whether the structure surrounding is the muscular part or the tendinous part of the adductor magnus muscle. For example, the top drawing on the right shows an oval fibrous type of ...
The adductor muscles that make up the groin consist of the adductor brevis, adductor longus, adductor magnus, gracilis, and pectineus. [4] These groin muscles adduct the thigh (bring the thigh and knee closer to the midline). The groin is innervated by branches of the lumbar plexus.
The adductor longus arises from the body of pubis inferior to pubic crest and lateral to pubic symphysis. [1]It lies ventrally on the adductor magnus, and near the femur, the adductor brevis is interposed between these two muscles.