visceral motor nuclei Flashcards

1
Q

all parasympathetic, get sympathetic innervation from spinal cord

A

visceral motor nuclei

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2
Q

how many visceral motor nuclei are there?

A

9

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3
Q
  • sends signals out to the vagus and on to viscera

- does everything in the parasympathetic system down to the transverse colon

A

dorsal motor nuclei of the vagus

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4
Q
  • goes to facial and has a contribution to glossopharyngeal
  • responsible for innervation of the lacrimal ducts, the submaxillary, and sublingual salivary glands, and pharynx
  • basic two neuron chain using acetylcholine
  • part of PNS
A

superior salivary nucleus

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5
Q
  • goes to parotid gland

- two neuron chain using acetylocholine

A

inferior salivatory nucleus

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6
Q
  • send signal to oculomotor which innervates the instrinsic smooth muscles of the eye (iris and lens)
A

edinger westphal nuclei

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7
Q
  • innervates the face
  • migrates from inside neural tube toward outside
  • facial muscles, larynx and some neck come from gill slits – striated
A

branchiomotor nuclei / special visceral efferent

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8
Q

what are the nerves of the SVE nuclei?

A

glossopharyngeal, facial, vagus

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9
Q
  • part of the cervical spinal cord

- innervates muscles of the neck

A

spinal nuclei of the spinal accessory

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10
Q
  • undefined edges
  • sends axons down to cranial nerves IX and X
  • none are two neuron chains
  • no sympathetic nervous system
A

nucleus ambiguus

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11
Q
  • axons go to cranial nerve VII (facial expression)

- damage here causes Bell’s palsy

A

facial motor nucleus

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12
Q
  • axons go to cranial nerve V
  • no sympathetic innervation
  • acetylcholine
A

trigeminal motor nucleus

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13
Q

which 3 stem nuclei are not accounted for?

A

VIII
II
I

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14
Q
  • starts at neocortex from lower 1/3 of motor cortex (Brodmann 4)
  • travels down to brain stem
  • upper motor neuron
  • once they synapse at brain stem, becomes lower motor neuron
A

corticobullar tract

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