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The fibularis longus muscle is innervated by the superficial fibular nerve (L5, S1). The main function of this muscle is to produce the plantarflexion and eversion of the foot on the ankle joint. In this article, we will discuss the anatomy and function of the muscle, as well as its clinical relevance.
The peroneus longus muscle (or fibularis longus) is a major mover and stabilizer of your foot and ankle. The muscle runs down the lateral side of your lower leg and attaches to your foot.
Function. Eversion the ankle and foot. Assists in ankle plantar flexion. In weight-bearing position depresses head of first metatarsal due to the strong pull on its insertion. Maintains the transverse arch of the foot as a result of how it crosses the sole of the foot.
In human anatomy, the fibularis longus (also known as peroneus longus) is a superficial muscle in the lateral compartment of the leg. It acts to tilt the sole of the foot away from the midline of the body and to extend the foot downward away from the body (plantar flexion) at the ankle.
The fibularis longus muscle is innervated by the superficial fibular (peroneal) nerve (L5, S1), a branch of the common fibular nerve. The function of the fibularis longus muscle is to plantar flex and evert the foot.
The fibularis longus originates from the superior and lateral surface of the fibula and the lateral tibial condyle. The fibres converge into a tendon, which descends into the foot, posterior to the lateral malleolus.
The fibularis longus muscle plays several critical roles in the movement and stability of the foot and ankle. Here are its primary functions: Eversion of the Foot: The primary function of the fibularis longus is to evert the foot. Eversion is the movement of turning the sole of the foot outward.
The fibularis longus, also referred to as the peroneus longus, is a muscle inside the outer area of the human leg, which everts (bends in an outward direction) and flexes the ankle.
Anatomy and functions of the fibularis longus muscle shown with 3D model animation. Watch the video tutorial now.
The fibularis longus muscle is involved in multiple actions: - everts the foot at the subtalar and transverse tarsal joints; - assists in plantarflexion of the foot at the ankle joint; - helps stabilize the longitudinal and transverse arches of the foot.