Somatic vs autonomic motor neuron innervation Flashcards
somatic effector
skeletal muscle
autonomic effector
smooth muscle
gland
cardiac muscle
somatic: stimulates or inhibits
stimulates
autonomic: stimulates or inhibits
sometimes stimlates sometimes ihinbits
somatic: number of neurons to effector
1
autonomic, sympathetic: number of neurons to effector
1-2
autonomic, parasympathetic: number of neurons to effector
2
somatic: location of cell body
CNS
autonomic: location of cell bodies
preganglionic: CNS
postganglionic: ganglion
somatic myelination
heavy
autonomic myelination
preganglionic: lightly
postganglionic: non-myelinated
somatic length of axon
very long
autonomic, sympathetic length of axon
preganglionic: short (fast response)
postganglionic: long
autonomic, parasympathetic length of axon
preganglionic: long (slower response)
postganglionic: short
somatic: NT
Ach
autonomic, sympathetic: NT
pre: Ach
post: NE
autonomic, sympathetic: NT
pre: Ach
post: Ach