CN IX, X, XI, XII Flashcards
What are the special visceral afferent stimuli of the glossopharyngeal nerve?
- taste from the root of the tongue
- carotid sinus and body
What are the somatic afferent stimuli of the glossopharyngeal nerve?
- sensory of the root of the tongue
What muscle does the glossopharyngeal nerve supply somatic motor function?
palatopharyngeal muscle
The pharyngeal branch of the glossopharyngeal nerve provides sensory innervation to what?
- soft palate
- pharynx
The lingual branch of the glossopharyngeal nerve provides sensory innervation to what?
GSA: mucosa of the root of the tongue
SVA: sensory (taste) of root of tongue
The pharyngeal branch of CN IX and the pharyngeal plexus are located medial to what structure?
tympanic bulla
What plexus controls swallowing?
Pharyngeal plexus (CN IX and CN X)
The vagus nerve has general somatic afferent innervation where?
- external ear canal
- laryngeal mucosa
The vagus nerve receives special visceral afferent stimuli where?
- taste from epiglottis
The vagus nerve receives general visceral afferent stimuli from where?
- cervical, thoracic, and abdominal organs
The vagus nerve provides general somatic efferent innervation to what muscles?
- pharyngeal muscle
- cricothyroid muscle
- laryngeal muscle
- esophagus
The vagus nerve provides general visceral efferent innvervation (parasympathetic) to what structures?
- smooth muscle and glands of digetive apparatus from esophagus and stomach until left colic flexure
- smooth muscle and glands of respiratory apparatus from larynx until lungs
What nerve of CN X is sensory for laryngeal mucosa and motor of cricothyroid muscle?
cranial laryngeal nerve
What nerve of vagus nerve is motor of all the other laryngeal muscles including dorsal cricoarytenoid muscle, sensory of infraglottic laryngeal mucosa, and from recurrent laryngeal nerve?
caudal laryngeal nerve
The cranial roots of the accessory nerve join with the vagus nerve to form what?
the recurrent laryngeal nerve
