KCT Autonomic NS Flashcards
what are the sensory neurons for ANS called
visceral afferent neurons
The three categories of target organs in the ANS
sm mus cardiac mus and glands
where are preganglionic axons located and what type of axon are they
in the CNS. B type myelinated (small diameter )
neurotransmitter released by the preganglionic parasympathetic AND sympathetic neurons
ACh (to nicotinic)
where are postganglionic axons located and what type of axon are they
in the ganglion. C type myelinated (small diameter)
are sympathetic postganglions releasing excitatory or inhibitory neurotransmitter
effect of norepinephrine depends on the organ
what types of neurotransmitter and receptor are typical of postganglionic parasympathetic neurons
ACh and muscarinic (excitatory OR inhibitory)
what types of neurotransmitter and receptor are typical of preganglionic parasympathetic neurons
ACh and nicotinic (excitatory)
the four cranial nerves of parasympathetic innervation
III VII IX X
From where does the lower portion of the parasympathetic nervous system arise
lateral gray matter of S2- S4
Preganglionic parasympathetic neurons that originate from the oculomotor nucleus in the midbrain synapse where?
ciliary ganglia
Where do the preganglionic parasympathetic neurons that originate in the facial nucleus of the brainstem synapse
in the pterygopalatine and submandibular ganglia
Where do preganglionic parasympathetic neurons that originate in the glossopharyngeal nucleus of the brainstem synapse? what does it innervate?
the otic ganglia. innervates the parotid gland.
Where are the cell bodies of preganglionic sympathetic neurons found
lateral/intermediate gray matter of spinal cord at T1-L2
what do the cervical paravertebral sympathetic nerves innervate
the heart
