MUSCULUS PERONEUS LONGUS Meaning and
Definition
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The musculus peroneus longus, also known as the peroneus longus muscle, is a deep and elongated muscle found in the lower leg that plays a critical role in ankle and foot movements. It is one of the muscles located on the lateral side of the leg, specifically in the intermediate compartment of the leg.
This muscle originates from the head and upper two-thirds of the fibula bone, which is located on the outside of the lower leg. From there, it runs inferomedially along the fibula, passing behind the lateral malleolus (the bony prominence on the outer side of the ankle). The musculus peroneus longus then continues its course forward to the medial plantar aspect of the foot, where it inserts into the medial cuneiform bone and the base of the first metatarsal bone.
The primary function of the musculus peroneus longus is to assist in plantar flexion and eversion, which involve pointing the foot downwards and twisting it outward, respectively. This muscle also helps to stabilize the ankle joint during weight-bearing activities. Additionally, it contributes to the maintenance of the arch of the foot, aiding in shock absorption during walking and running.
Overall, the musculus peroneus longus is an essential component of the lower leg, facilitating various movements of the ankle and foot while ensuring stability and proper alignment.
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Origin, upper two-thirds of outer surface of fibula and external condyle of tibia; insertion, by tendon passing behind external malleolus and across sole of foot to internal cuneiform and base of first metatarsal; nerve supply, peroneal; action, abducts and pronates foot.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for MUSCULUS PERONEUS LONGUS
- nusculus peroneus longus
- kusculus peroneus longus
- jusculus peroneus longus
- mysculus peroneus longus
- mhsculus peroneus longus
- mjsculus peroneus longus
- misculus peroneus longus
- m8sculus peroneus longus
- m7sculus peroneus longus
- muaculus peroneus longus
- muzculus peroneus longus
- muxculus peroneus longus
- mudculus peroneus longus
- mueculus peroneus longus
- muwculus peroneus longus
- musxulus peroneus longus
- musvulus peroneus longus
- musfulus peroneus longus
- musdulus peroneus longus
- muscylus peroneus longus
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