Human Skeletal Muscle Musculature Return to PCS 1 Internet Links Return to Class Notes Panel Figures Index Click on graphic to visit a useful website on the Human Body Source: InnerBody Works http://www.innerbody.com/htm/body.html At the source website shown above if you pass the mouse pointer over any of the yellow spots, the name of the muscle will be displayed.  No.... I will not make you memorize any of them. The focus for us, is the concept of skeletal muscle which is voluntary and is controled via efferent neurons also known as motor neurons of the somatic nervous system.  Their neurotransmitter is acetylcholine and the location where they connect to the muscle cell is called the neuromuscular junction.  Acetylcholine is released from the motor neuron into the synaptic cleft.  It diffuses to the muscle cell end plate where it excites the muscle cell electical activity and generates an Action Potential which spreads through the skeletal muscle cell and induces a contraction. Return to the Top