Adductor brevis muscle
| Adductor brevis muscle | |
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| The adductor brevis and nearby muscles | |
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| 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.
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[edit] 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.
[edit] 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.
[edit] 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.
[edit] Innervation
The adductor brevis is innervated dually by the anterior and posterior branches of the obturator nerve.[2]
[edit] References
- ^ Wilson, Erasmus (1851) The anatomist's vade mecum: a system of human anatomy, pp 260-261
- ^ Miura M, Nakamura E, Kato S, Usui T, Miyauchi R. (1994), The true nature of the adductor brevis dually innervated by the anterior and posterior branches of the obturator nerve in humans
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.
[edit] Additional images
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Deep muscles of the medial femoral region.
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The lumbar plexus and its branches.
[edit] External links
- LUC adbr
- -952827827 at GPnotebook
- Cross section at UV pembody/body18b
- Cross section at UV pelvis/pelvis-e12-15
- PTCentral
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