1.1 Somatic Motor Nervous System

Briski

function of the somatic motor nervous system

motor innervation (movement) of all skeletal muscles

what type of neurons does the somatic nervous use

lower or upper motor neurons

describe axons found in the somatic nervous system

heavily myelinated

which type of axon allows for faster conduction? heavily myelinated or lightly?

heavily

motor neurons of the somatic nervous system release which neurotransmitter at the effector organs?

ACh

movement of the effector organs is due to the release of…

ACh

the effects of ACh from the somatic nervous system on the effector organs (skeletal muscle) is ALWAYS….

stimulatory

where do the upper motor neurons originate

primary motor cortex of the brain

upper motor neurons travel from the primary motor cortex of the brain to either the somatic motor nuclei of the ____ or the somatic motor nuclei of the ____

brainstem or spinal cord

lower motor neurons originate in the ___ or the ___

somatic motor nuclei of either the brain stem or the spinal cord

lower motor neurons send signals directly to…

skeletal muscle