ANS Flashcards
The basic circuit of ANS is what kind of system?
2 Neuronal Chain System
Parasympathetic NS is also known as ________.
Cranio-sacral (because some nerves are cranial, and some sacral)
Which cranial nerves involved in parasympathetic NS?
III - occulomotor
VII - facial
IX - glossopharyngeal
X - vagus
CN III innervates the ________ and causes _______.
pupils - constriction
CN VII innervates the __________ and mucus membranes of the head.
salivary and sublingual glands
CN IX innervates the _________.
parotid gland
CN X innervates everything below the neck up until the ________.
L colic flexure
Sympathetic NS causes pupillary ________.
dilation
Sympathetic NS causes ________ HR.
increased
Sympathetic NS causes ________ of blood vessels in skeletal muscles.
dilation
Parasympathetic NS causes gut ________.
motility
Sympathetic NS causes _________ of blood vessels in the gut.
constriction
Parasympathetic NS causes pupillary ________.
constriction
Parasympathetic NS causes ________ HR.
decreased
Parasympathetic NS causes airway ________.
constriction
T or F: actual state of being is determined by balance between both sympathetic and parasympathetic systems.
TRUE
The preganglionic neuron in the neuronal chain system has cell body in the
CNS
The postganglionic neuron in the neuronal chain system has cell body in
PNS (it is an autonomic ganglion)
The ganglia are located in or near the organ that is innervated so first axon is _____ and second axon is ______ in parasympathetic system.
1st = long 2nd = short
The first axon is ______ and 2nd axon is _____ in the sympathetic NS.
1st = short 2nd = long
For both sympathetic and parasympathetic, the first synapse neurotransmitter receptor is ______.
cholinergic (nicotinic)
For parasympathetic neurotransmitter, the synapse onto effector is ______.
cholinergic (muscarinic)
For sympathetic neurotransmitter, the synapse onto effector is ______.
noradrenergic (norepinephrine)
The sympathetic chain extends the length of the vertebral column even though the levels of origin from spinal cord are only _____.
T1-L2
The sympathetic neurons exit on spinal nerve then enter the sympathetic chain ganglion via the __________.
white ramus
The second sympathetic neuron can synapse on ganglion at that level and then exit spinal n at that level via ______.
gray ramus
T of F: The second sympathetic neuron can travel up or down the chain before exiting to innervate UE, head, face, LE, or pelvic organs.
True.
Which sacral cord levels contribute to cranio-sacral (parasympathetic) system?
S2-4 intermediate gray matter
