Cervical and Cranial Nerves Flashcards
GSA fibers innervate structures of what origin?
ectodermal (skin
The phrenic nerve can be seen traveling up the anterior surface of what muscle?
Anterior scalene
GSA fibers convey what type of information?
Pain, temp, tactile, pressure, and proprioception highly localized
GVA fibers innervate structures of what origin?
endodermal
GVA fibers convey what type of information?
dull, aching, burning, poorly localized pain
GSE fibers innervate structures of what origin?
myotomic (muscles of the neck, tongue, extraocular)
GVE fibers are associated with what?
Autonomic nervous system
What is the main GSA nerve?
Trigeminal
What is the nucleus for general sensations from the posterior 1/3 of the tongue to the mid portion of the colon and what nerve feeds into this?
Nucleus Tractus Solitarius (NTS); Vagus Nerve
What nerve and action is associated with brachial arch 1?
Trigeminal; muscles of mastication
What nerve and action is associated with brachial arch 2?
Facial; facial expression
What nerve and action is associated with brachial arch 4?
Vagus/nucleus ambiguus; pharynx and larynx muscles
What nerve has a lesion? Loss of gag reflex, slight dysphagia, loss of sensation in pharynx and posterior 1/3 of tongue
Glossopharyngeal nerve (IX)
What nerve has a lesion? Dysphonia, Dysphagia, Dyspnea, loss of gag or laryngeal cough reflex
Vagus (X)
What nerve has a lesion? inability to shrug the shoulder and flex and rotate the head on the same side as the lesion
Accessory Nerve (XI)
