Adductor brevis muscle

Adductor brevis muscle
The adductor brevis and nearby muscles
Structures surrounding right hip-joint. (Adductor brevis at upper right.)
Gray's subject #128 473
Origin anterior surface of the inferior ramus and body of the pubis
Insertion    the lesser trochanter and linea aspera of the femur
Artery Obturator artery
Nerve obturator nerve
Actions adduction of hip

The adductor brevis is a muscle in the thigh situated immediately behind the pectineus and adductor longus.

Contents

Origin and insertion

It is somewhat triangular in form, and arises by a narrow origin from the outer surfaces of the superior and inferior rami of the pubis, between the gracilis and obturator externus.

Its fibers, passing backward, lateralward, and downward, are inserted, by an aponeurosis, into the line leading from the lesser trochanter to the linea aspera and into the upper part of the linea aspera, immediately behind the pectineus and upper part of the adductor longus.

Actions

The muscle is primarily known as a hip adductor. It also functions as a hip flexor. Whether it acts to rotate the femur laterally or medially is dependent on position.

Relations

By its anterior surface, the adductor brevis is in relation with the pectineus, adductor longus, and anterior branches of the obturator artery, the obturator vein, and the obturator nerve.

By its posterior surface with the adductor magnus and the posterior branches of the obturator artery, the obturator vein, and the obturator nerve.

By its outer border with the obturator externus, and the iliopsoas. By its inner border with the gracilis and adductor magnus.

It is pierced near its insertion by the middle perforating artery.

[1]

Innervation

The adductor brevis is innervated dually by the anterior and posterior branches of the obturator nerve.[2]

References

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

Additional images

External links