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PERONEUS WORKOUT​

LOWER LEG WORKOUT

In human anatomy, the peroneus longus (also known as fibularis longus) is a superficial muscle in the lateral compartment of the leg, and acts to evert and plantar flex the ankle.

It is situated at the upper part of the lateral side of the leg, and is the most superficial of the three peroneus muscles.

It is innervated by the superficial fibular nerve (superficial peroneal nerve).

Blood is supplied by branches of the anterior tibial and peroneal arteries

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The Peronæi longus and brevis plantar-flex the ankle, in conjunction with the Tibialis posterior, antagonizing the Tibialis anterior and Peronæus tertius, which are dorsi-flexors of the foot.

The Peronæus longus also everts the sole of the foot, and from the oblique direction of the tendon across the sole of the foot is an important agent in the maintenance of the transverse arch.

Taking their fixed points below, the Peronæi serve to steady the leg upon the foot.

This is especially the case in standing upon one leg, when the tendency of the superincumbent weight is to throw the leg medialward; the Peronæus longus overcomes this tendency by drawing on the lateral side of the leg.

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