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PNS final > unit 7: CN para pathways > Flashcards

unit 7: CN para pathways Flashcards

1
Q

the PREganglionic CB of the oculomotor n. are located in the __ __ nucleus, within the midbrain, in the ___ ___

A

accessory oculomotor

periaqueductal gray

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2
Q

oculomotor PREganglionic fibers follow the path of the oculomotor into the orbit and synapse in the __ ganglion

A

ciliary

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3
Q

oculomotor POSTganglionic axons are carried in __ __ nerves and enter the eyball to supply the ___ muscle and __ __

A 
short ciliary
ciliary (contract, convex lens, focus closer)
sphincter pupillae (contract, decrease pupil size)
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4
Q

location of facial nerve PREganglionic CB

A

salivary nucleus (superior)

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5
Q

preganglionic fibers exit the CNS in the intermediate nerve and are carried in these two branches of the facial nerve:

A

greater petrosal nerve

chorda tympani

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6
Q
  • greater petrosal n. leaves facial n. at the __ ganglion and carries PREganglionic PARA fibers anteriorward thru the ____ for the greater petrosal n.
  • re-enters petrous part of temporal bone thru the __ __, travels in the pterygoid canal, ultimately joins the ____ ganglion
A

geniculate
hiatus
foramen lucerum
pterygopalatine

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7
Q

POSTganglionic fibers from the greater petrosal are distrubuted in the __ and __ nerves to reach the lacrimal, nasal, palatine and pharyngeal glands

A

lacrimal

pterygopalatine

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8
Q
  • chorda tympani carries PREganglionic PARA fibers thru the tympanic cavity, exits temporal bone thru the __ __
  • then combines with ____ nerve, from the mandibular division of the trigeminal, before leaving to reach the ___ ganglion
A

pterygotympanic fissure
lingual
submandibular

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9
Q

POSTganglionic fibers from the chorda tympani travel to __ and ___ glands, as well as glands in the mucous membranes of the oral cavity, lingual glands on anterior part of tongue

A

submandibular

sublingual

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10
Q

location of the PREganglionic CB of teh glossopharyngeal nerve

A

salivary nucleus (inferior)

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11
Q
  • glossopharyngeal preganglionic fibers are carried in the ___ nerve, off the glossopharyngeal at the inferior ganglion
  • fibers are carried thru the __ __ into the tympanic cavity
A

tympanic

tympanic canaliculus

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12
Q
  • in the tympanic cavity, the glossopharyngeal nerve receives POSTganglionic symp fibers from the __ __ ganglion to form the tympanic plexus
  • PREganglionic PARA fibers pass thru the plexus and reform as the __ __ nerve, which travels thru the lesser petrosal canal to the __ ganglion
A

superior cervical
lesser petrosal
otic

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13
Q

(glossopharyngeal) POSTganglionic PARA fibers from the otic ganglion are carried to the __ and posterior __ glands

A

parotid

lingual

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14
Q

glossopharyngeal postganglionic PARA fibers reach the PAROTID gland via the ___ nerve, from the mandibular division of the trigeminal

A

auriculotemporal

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15
Q

the posterior lingual glands get POSTganglionif fibers via the __ branch of the glossopharyngeal nerve

A

lingual

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16
Q
  • ___ (special sensory) fibers are carried in the lingual branch of the glossopharyngeal
  • other visceral afferents are carried in the carotid sinus branch from ___ in the carotid SINUS and ___ in the carotid BODY
A

taste
baroreceptors
chemoreceptors

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17
Q

(vagus) PREganglionic CB are located in the:

A

posterior (dorsal) nucleus of the vagus

18
Q

preganglionic fibers descend in the vagus to ultimately supply __ __ of the bronchial tree, digest tract, gall bladder and bile ducts, myocardium as well as to the pancreas, liver and spleen

A

smooth muscle

19
Q

POSTganglionic (vagus) cells are usually located in the organs supplied or BV that supply the organs such as (3):

A

myocardium
submucosal plexus
myenteric plexus

20
Q

in pway to the heart, PREganglionic fibers are carried in the superior and inferior ___ nerves, and synapse in the __ __ at the base and wall of heart

A

cardiac

cardiac plexus

21
Q

POSTganglionic heart fibers are carried to (3):

A

sinoatrial node
atrioventricular node
atrioventricular bundle (to reach subendocardial branches/purkinje fibers)

22
Q

PARA impulses of the heart will ___ the myocardium and ___ the coronary arteries

A

inhibit

constrict

23
Q

for pway to the lungs, PREganglionic fibes are carried in the ANT & POST ___ branches, to synapse in the ___ __ surrounding the bronchial tree

A

bronchial

pulmonary plexuses

24
Q

POSTganglionic lung fibers reach bronchial __ & bronchial __

A

musculature

glands

25
Q

PARA impulses result in ___ of bronchial tree and __ secretions of bronchial glands

A

constriction

increase

26
Q

in pway to the esophagus, PREganglionic fibers are carried in the __ __ nerves as well as the anterior and posterior __ branches, to synapse in the WALL of the esophagus

A

recurrent laryngeal

esophageal

27
Q

POSTganglionic esophagus fibers supply the __ __ fibers of the (LOWER 2/3)
-upper 1/3 is skeletal musc supplied by recurrent laryngeal

A

smooth muscle

28
Q

PREganglionic stomach fibers reach it via branches from both the ANT (4 branches) and POST (6 br) vagal trunks to synapse in the ___ and __ plexuses in the stomach wall
-SI, cecum, appendix, ascending/transverse colon also synapse here

A

submucosal

myenteric

29
Q

POSTganglionic stomach axons reach __ __ fibers from the submucosal and myenteric plexuses

A

smooth muscle

30
Q

PARA stim of stomach results in __ of smooth muscle and __ of gastric juices

A

contraction

secretion

31
Q

PREganglionic fibers reach the SI, cecum, vermiform appendix, ascending/transverse colon via the posterior ___ trunk

  • fibers to duodenum do so via the __ __
  • others are via the cardiac plexus and continuing thru the __ __ plexus
A

vagal
celiac plexus
superior mesenteric

32
Q

POSTganglionic intestinal/digestive axons reach _ _ fibers from the celiac, submucosal, and myenteric plexuses

A

smooth muscle

33
Q

PARA stim of digestive organs results in ___ of smooth muscle and is ___ for intestinal GLANDS

A

contraction

secretomotor

34
Q

PREganglionic fibers to the gallbladder, pancreas, biliary tree are primarily from the HEPATIC branch of the right vagal trunk, and reach the organs via the __ plexus, off the celiac plexus
-synapse on __ walls of gall bladder and biliary tree, and in the __ tissue of the pancreas

A

hepatic
muscular
glandular

35
Q

PARA stim increases smooth musc activity in the gall baldder and biliary vessels and is ___ for the pancreatic glands

A

secretomotor

36
Q

PREganglionic fibers reach the spleen from the posterior vagal trunk via the __ plexus, an extension of the celiac plexus

A

splenic

37
Q

fibers reach the kidneys thru the ___ plexus, from the posterior vagus

A

renal

38
Q

the kidney’s MOTOR supply is strictly sympathetic, so any fibers reaching the kidney via PARA are likely __ ___
-CB are located in the __ __ of the VAGUS

A

visceral afferents

inferior ganglion

39
Q

PREganglionic fibers to liver are primarily from the ANT vagal trunk (some post), and reach the liver via the __ plexus off the celiac
-PARA supply to the liver is primarily ___

A

hepatic

afferent

40
Q

like the liver and kidneys, vagal supply the to suprarenal glands is ___ and those fibers are carried in the ___ vagal trunk

A

afferent

posterior

PNS final (12 decks)

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