Fifth metatarsal


Plantar flexion, eversion

Nerve Supply

Superficial peroneal nerve

Arterial Supply

Peroneal artery

Physical Exam

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Clinical Importance

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Disease States

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It arises from the lower two-thirds of the lateral surface of the body of the fibula; medial to the Peronæus longus; and from the intermuscular septa separating it from the adjacent muscles on the front and back of the leg.

The fibers pass vertically downward, and end in a tendon which runs behind the lateral malleolus along with but in front of that of the preceding muscle, the two tendons being enclosed in the same compartment, and lubricated by a common mucous sheath.

It then runs forward on the lateral side of the calcaneus, above the trochlear process and the tendon of the Peronæus longus, and is inserted into the tuberosity at the base of the fifth metatarsal bone, on its lateral side.


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From Wikipedia:
Peroneus brevis


Peroneus brevis.png (image/png)