What does muscles innervated mean

An undivided, thick nerve extends from the pelvis to the knee. Near the back of the knee, the nerve divides into the tibial and common peroneal fibular branches.

Each of these branches contains fibers from the nerve roots in the lower spine. Read more about Lumbar Spinal Nerves. The sciatic nerve provides a wide range of motor functions, including powering movement to the muscles that move each thigh, leg, and foot.

Important motor functions include:. The sciatic nerve helps facilitate several movements of the foot. Movements include turning the foot inward inversion , outward eversion , upward dorsifelxion , and downward plantarflexion. If the sciatic nerve is impaired in any way, the affected portion of the nerve root or sciatic nerve determines which motor functions are affected.

The sciatic nerve provides sensation to different areas of skin dermatome over the lower limb s. Similar to the motor symptoms, sensory impairments are also determined by the location of sciatic nerve involvement.

New Word List Word List. Save This Word! See synonyms for innervate on Thesaurus. We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms. Many cross-innervated fibres received multiple inputs through the foreign nerve.

Some foreign end-plates were separated by distances ranging up to 1 mm. Polyneuronal innervation through the foreign nerve was completely eliminated during maturation but over a slightly longer period than in normal muscles. Apparently the elimination process can act over a distance up to but not much more than 1 mm. These observations suggest that there are several factors influencing the elimination of redundant inputs in immature muscles. Individual motor neurones appear to have an inherent tendency to withdraw the majority of their original complement of peripheral terminals.

The determination of which particular synapses are to survive, however, seems to be made in the periphery by a selection among all the synapses that innervate a limited region of each muscle fibre.