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Neuro6
WVSOM -- CN VII
Question | Answer |
---|---|
What are the 2 efferent components of CN VII? | facial motor nucleus and superior salivatory nucleus |
What kind of nerve is CN VII? | mixed |
How many nuclei are involved with CN VII? | 4 |
Where do axons leave for CN VII? | pontomedullary junction |
What is the purpose of the facial motor nucleus? | motor neurons that innervates voluntary mimetic muscles of the face |
Where is the facial motor nucleus? | caudal pons |
What gives cortical motor input to the facial nerve? | corticobulbar tract |
What kind of cortical input innervates the upper portion of the face? | bilateral input |
What kind of cortical input innervates the lower portion of the face? | contralateral input |
What is the purpose of the superior salivatory nucleus? | parasympathetic preganglionic axons that innervate the pterygopalatine and submandibular ganglia |
What does the pterygopalatine ganglion lead to? | lacrimation via lacrimal gland |
What does the submandibular ganglion lead to? | salivation via the sublingual and submandibular glands |
What part of taste goes with CN VII? | anterior 2/3 of the tongue |
What are the two afferent components of CN VII? | taste and somatic sensations |
Where does CN VII conduct somatic sensations from? | pinna (ear) |
Where are sensory neurons of CN VII have their cell bodies? | geniculate ganglion |