The ANS Flashcards
What ganglionic nurons are unmylinated
Postganglionic
What neurotransmitters do postganglionic use?
Either acytalcholine or adrenaline (aka epinephrine)
What neurotransmitter does preganglionic nurons use
Just acytacholine
Parasympathetic fibers arise from
Cranial and sacral regions
Sympathetic fibers arise from
Thoracic and lumbar regions
Length of parasympathetic fibers
Long preganglionic
short postganglionic
Length of sympathetic fibers
Short preganglionic
Long postganglionic
Parasympathetic location
In the visceral effector organ or near it
Sympathetic location
Near the spinal cord in a chain of ganglia called the sympathetic trunk
Parasympathetic uses what neurotransmitter
Uses acetylcholine at both synapses
Sympathetic uses what neurotransmitters
Uses acetylcholine at first synaps
And epinephrine or
nuroepinephrin at the second synapse
What are the Cranial outflow of nerves from the PNS
Oculomotor nerve (3)
Facial nerve (7)
Glossopharyngeal nerve (9)
Vagus nerve (10)
The Autonomic nervous system controls what
Regulates involuntary physiological processes such as breathing and digestion
Ganglion
Cluster of cell bodies in PNS
Allows a synapse partway through a pathway
Basal nuclei
Islands of grey matter located within the white matter of cerebrum