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The fibularis brevis (bottom-most label) is a muscle of the lower leg and aids in plantar flexion and eversion of the foot. The fibularis brevis arises from the lower two-thirds of the lateral, or outward, surface of the fibula (inward in relation to the fibularis longus) and from the connective tissue between it and the muscles on the front and back of the leg.
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 flexor hallucis longus is situated on the fibular side of the leg. It arises from the inferior two-thirds of the posterior surface of the body of the fibula, with the exception of 2.5 cm at its lowest part; from the lower part of the interosseous membrane; from an intermuscular septum between it and the peroneus muscles, laterally, and from the fascia covering the tibialis posterior, medially.
The calcaneofibular ligament is a narrow, rounded cord, running from the tip of the lateral malleolus of the fibula downward and slightly backward to a tubercle on the lateral surface of the calcaneus. It is part of the lateral collateral ligament, which opposes the hyperinversion of the subtalar joint, as in a common type of ankle sprain. [1]
Along with the soleus muscle, the gastrocnemius forms half of the calf muscle. Its function is plantar flexing the foot at the ankle joint and flexing the leg at the knee joint. The gastrocnemius is primarily involved in running, jumping and other "fast" movements of leg, and to a lesser degree in walking and standing.
The fibularis tertius muscle in horses originates from the near the lateral condyle of the femur, passes through the extensor sulcus on the head of the tibia, and inserts onto the third metatarsal bone, the third and fourth tarsal bones, and the calcaneus. [8] Rupture of the muscle may cause the Achilles tendon to have a slight dip. [8]
Foot drop is rarely the result of a pathology involving the muscles or bones that make up the lower leg. The anterior tibialis is the muscle that picks up the foot. Although the anterior tibialis plays a major role in dorsiflexion, it is assisted by the fibularis tertius , extensor digitorum longus and the extensor hallucis longus .
A leg slicer (depending on the affected muscle also called for instance calf slicer or thigh crusher) is a compression lock that involves pressing the calf and/or thigh muscle into one of the bones in the leg. Similarly to the biceps slicer, a leg slicer can be applied by inserting an arm or leg in the backside of the knee, and flexing the ...
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