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Cranio Exam 3 > autonomic nervous system of head > Flashcards

autonomic nervous system of head Flashcards

1
Q

autonomic is divided into:

A

parasympathetic

sympathetic

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2
Q

T1-L2 is the _____ NS

A

sympathetic

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3
Q

CN III, VII, IX, X and S2-24 are the ______ NS

A

parasympathetic (cranio saccral)

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4
Q

what are the autonomic plexuses?

A 
cardiac
pulmonary
esophageal
celiac
mesenteric
hypogastric
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5
Q

the autonomic nervous system is a _____ neuron system

A

2 neuron

has presynaptic and postsynaptic and they synapse with autonomic ganglion

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6
Q

outflow name of parasympathetic

A

cranial sacral

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7
Q

outflow name of sympathetic

A

thoracolumnar

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8
Q

preganglionic cell body location of parasympathetic

A

brainstem nuclei and intermediolateral horn of S2-4

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9
Q

preganglionic cell body location of sympathetic

A

intermediolateral horn of T1-L2 only

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10
Q

preganlionic axon of parasympathetic

A

relatively long

uses 4 pairs of cranial nerves and 3 pairs of sacral spinal nerves

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11
Q

preganglionic axon of sympathetic

A

relatively short: white communicating rami
does not use cranial nerves
14 pairs of thoracolumbar nerves

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12
Q

postganglionic cell body of parasympathetic

A

mostly in target tissues including pelvic splanchnics

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13
Q

postganglionic cell body in symp

A

mostly sympathetic ganglia

splanchnics in prevert ganglia

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14
Q

postganglionic axons in parasymp

A

relatively short and contained within target tissue

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15
Q

postganglionic axons in sympathetic

A

relatively long due to distance from ganglia to target

greay communicating rami

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16
Q

primary target of parasymp

A

mostly viscera

never skin

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17
Q

primary target of symp

A

mostly skin

viscera secondary

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18
Q

function of parasymp

A 
resting/digesting
decrease heart rate and blood pressure
increase GI tract activity
constrict pupils and bronchi
salivation
bladder contraction
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19
Q

function of sympathetic

A 
fight/flight
increase HR and BP
decrease GI tract activity
dilate pupils 
inhibits saliva
dilates bronchi
gly to glu
adrenaline
inhibits bladder contraction
20
Q

all preganglionic cell bodies are ______ in sympathetic/parasymp

A

acetylcholine

21
Q

norepinephrine goes to _____ in _____ nervous system

A

smooth muscle
cardiac muscle
gland cells
sweat glands

22
Q

acetylcholine goes to _____ in _____ NS

A

smooth muscle
cardiac muscle
gland cells
in parasympathetic

23
Q

sympathetic nervous system targets ____

24
Q

what neurons are in the sympathetic chain?

A

postganglionic sympathetic neurons

–ascend sympathetic chain and then go to target tissue

25
cervical ganglia
superior: C1-C4 middle: C5 & C6 inferior: C7 & C8
26
what is the distribution of sympathteic in head?
preganglionic--> superior cervical ganglia--> hitch a ride on the carotid--> cephalic arterial ramus--> carotid perarterial plexus--> blood vessels of visceral structures, blood vessels, sweat, arrector muscles of hair--> eyeball
27
what is the sympathetic fiber distribution via the ICA?
1. preganglionic ascend to superior cervical ganglia 2. postganglionic go through internal carotid 3. deep petrosal nerve (symp) 4. nerve (vidian) of pterygoid canal 5. maxillary nerve (V2) entering foramen rotundum 6. pterygopalatine ganglion in pterygopalatine fossa 7. maxillary sinus
28
*outflow of CN III
nucleus: edinger-westphal (midbrain) preganglionic axon: CN III ganglion (postganglionic cell bodies): ciliary ganglion postganglionic axon synapses: sphincter pupillae and ciliary body
29
*outflow of CN VII
nucleus: lacrimal (pons) and superior salivatory preganglionic axon: CN VII ganglion (postganglionic cell bodies): pterygopalatine and submandibular postganglionic axon synapses: lacrimal/nasal glands & submandibular/sublingual glands
30
*outflow of CN IX
nucleus: inferior salivatory (medulla) preganglionic axon: CN IX ganglion (postganglionic cell bodies): otic postganglionic axon synapses: parotid gland
31
CN X outflow
nucleus: dorsal motor N of X and nucleus ambiguus (medulla) preganglionic axon (nerve): CN X ganglion (postganglionic cell bodies): terminal ganglia and cardiac ganglia postganglionic axon synapses: gut to left colic flexure and lungs and cardiac muscle
32
sacral outflow
nucleus: intermediolateral horn (spinal cord) preganglionic axon: S2, 3, 4, pelvic splanchnics ganglion (postganglionic cell bodies): pelvic plexus ganglia postganglionic axon synapses: gut below left colic flexure and urogenital organs
33
superior salivatory nucleus is in the ___
pons
34
inferior salivatory nucleus is in the ____
medulla
35
list the autonomic motor nuclei
edinger-westphal nucleus (III) lacrimal nuclei salivatory nuclei dorsal motor nucleus of X
36
CN III goes to ---
ciliary ganglion which innervates the eyes
37
CN VII goes to --
pterygopalatine ganglion and submandibular ganglion | which innervates lacrimal, nasal, palatine, and pharyngeal glands and submand and sublingual glands
38
CN IX goes to --
otic ganglion which innervates the parotid
39
what are the three things that happen to eye with the parasympathetic nervous system
- thickens lens - constricts pupil - convergence of eyes
40
parasympathetic path to eye
1. accessory oculomotor (edinger-westphal) nucleus 2. oculomotor nerve (III) 3. ciliary ganglion
41
parasympathetic path to submandibular and sublingual glands
1. superior salivatory nucleus 2. VII and pterygopalatine ganglion 3. tympanic cavity 4. chorda tympani 5. lingual nerve 6. submandibular ganglia (postganglionic) 7. sublingual
42
parasympathetic innervation of CN IX
1. inferior salivatory nucleus 2. glossopharyngeal nerve 3. tympanic cavity and plexus 4. lesser petrosal nerve 5. otic ganglion 6. auriculotemporal nerve 7. parotid gland
43
what happens with a CN III lesion? (parasymp)
loss of accommodation reflex (pupillary constriction and thickening of lens)
44
what happens with a CN VII and IX lesion? (parasymp)
affects lacrimal and salivary secretions
45
T1 lesion affects what only? (sympathetic)
eye only
46
T1-T3 lesion in sympathetic division affects?
eye and head and neck
47
sympathetic chain (superior cervical ganglia) lesion leads to?
horner's syndrome

Cranio Exam 3 (9 decks)

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