Swainson's hawk. Swainson's hawk (Buteo swainsoni), is a large Buteo hawk of the Falconiformes, sometimes separated in the Accipitriformes like its relatives. This species was named after William Swainson, a British naturalist.
The peroneal nerve controls the muscles that lift your foot. This nerve runs near the surface of your skin on the side of your knee closest to your hand. Activities that compress this nerve can increase your risk of foot drop. Crossing your legs. People who habitually cross their legs can compress the peroneal nerve on their uppermost leg.
Because the tibialis anterior muscle is innervated from the L4-S1 roots, especially the L5 and to a lesser extent L4 root, through the sciatic and ultimately the deep peroneal nerves, a lesion in any of these can cause foot drop. The toe extensors are primarily innervated from L5, with some contribution from S1.efinitions: When there is paralysis of the dorsal extensor muscles of the foot and the toes (tibialis anterior, extensor digitorum longus, and extensor hallucis longus), which are innervated by the deep peroneal nerve, foot drop occurs.