One motor unit consists of a motor neuron (a nerve cell whose body is in the spine and whose axons project outward to connect to muscle), plus a bunch of muscle fibers that all contract together ...

Thus any conscious desire to increase the power output by increasing motor unit recruitment would be blocked by these metabolic changes in the brain. This is analogous to the postulated action of ...

Contraction of skeletal muscle is voluntarily controlled in the cerebral cortex, cerebellum, basal ganglia and brainstem nuclei (McLaren, 2005). Motor nerves descend from ... Interactions within the ...

Muscles such as biceps, pectorals and quadriceps are called skeletal muscles because they attach to the skeleton to generate motion. Skeletal muscles are composed of very long, thin cells that ...

The mutation causes the accumulation of a mutant protein that damages the motor ... muscle atrophy, or primary damage to the muscle, is not known, these observations suggest that skeletal muscle ...

the process that robs people with ALS of their ability to control their skeletal muscle. The neuromuscular junction has not been closely examined in studies of motor neuron disease, and may turn out ...