Flashcards in Spinal 2 Exam 4 Wk 1 Deck (40):
Because of its function, the seventh cranial nerve is often called the....?
great motor nerve of the face
What classifications of fibers are conveyed at the apparent origin of the seventh cranial nerve?
branchial efferent, visceral efferent, somatic afferent, special visceral afferent
Most of the seventh cranial nerve will exit the skull via what opening?
the stylomastoid foramen
Into what region of the head will the stylomastoid foramen open?
the parotid region
Branchial efferent fibers carried in the seventh cranial nerve will innervate what muscles?
muscles of facial expression, muscles of the scalp and auricle, the buccinator, platysma, stapedius, stylohyoid, and posterior belly of the diagastic
Visceral efferent fibers conveyed in the seventh cranial nerve originate from which nucleus?
superior salivatory nucleus
Preganglionic visceral efferent fibers of cranial nerve VII will exit the pons in what nerve?
nervus intermedius, nerve of Wrisberg, sensory root of facial nerve
Which immediate branch of the seventh cranial nerve will convey preganglionic parasympathetic efferent fibers to the lacrimal gland?
greater petrosal or greater superficial petrosal nerve
which branch of the seventh cranial nerve will convey preganglionic parasympathetic fibers into the pterygopalatine ganglion?
vidian nerve or nerve of the pterygoid canal
What are the names of the ganglion of synapse in the efferent pathway to the lacrimal gland?
pterygopalatine ganglion, sphenopalatine ganglion, Meckel's ganglion
Postganglionic parasympathetic efferent fibers from the pterygopalatine, sphenopalatine, or Mecke's ganglion will become incorporated in which cranial nerve branch?
maxillary nerve of the trigeminal
Which branch of the zygomatic nerve will convey postganglionic parasympathetic efferent fibers to the lacrimal gland?
The zygomaticotemporal nerve will convey postganglionic parasympathetic efferent fibers to the lacrimal gland through a communication with which branch of the fifth cranial nerve?
Which immediate branch of the seventh cranial nerve will convey preganglionic parasympathetic efferent fibers to the submandibular and sublinguial glands?
chorda tympani nerve
The chorda tympani nerve exits the temporal bone via which opening?
the petrotympanic fissure of the temporal bone
The chorda tympani nerve will join which nerve?
the lingual nerve of the mandibular division of the trigeminal
Peripheral sensory processes from receptors around the ear and mastoid region are conveyed to the seventh cranial nerve from what other cranial nerve?
In general, somatic afferent pathways typically terminate on which nucleus?
spinal trigeminal nucleus
What is the classification of sensory fibers associated with taste?
special visceral afferent (SVA) fibers
Pseudounipolar neurons associated with taste sensation from the anterior 2/3 of the tongue wil synapse on secondary afferent neurons located in what nucleus?
gustatory nucleus of the nucleus solitarius
What fluid separates the membranous labyrinth from the bony labyrinth?
In what elevations of each part of the vestibular apparatus will receptor cells be identified?
the macula of the saccule, the macula of the utricle, and the crista ampullaris of the ampullae of the semicircular ducts
What is unique to the receptor cells associated with equilibrium?
stereocilia and a single kinocilium
What is the location of the primary afferent neuron associated with equilibrium?
Scarpa's ganglion or the vestibular ganglion
Receptor cells associated with hearing are located in what structure?
the organ of Corti in the cochlear duct or scala media
What is the unique feature of receptor cells associated with hearing?
What is the location of the primary afferent neuron associated with hearing?
the spiral ganglion or cochlear ganglion
The ninth cranial nerve has an apparent origin from what part of the brain?
the medulla oblongata
What is the name of the branchial motor nucleus of the ninth cranial nerve?
Branchial efferent fibers conveyed in the ninth cranial nerve will innervate what target?
Preganglionic parasympathetic efferent fibers are observed in what primary branch of the ninth cranial nerve?
tympanic nerve or nerve of Jacobson
Within the temporal bone, preganglionic parasympathetic efferent fibers of the ninth cranial nerve will ultimately form what nerve?
the lesser (superficial) petrosal nerve
Preganglionic parasympathetic efferent fibers from the ninth cranial nerve will synapse in which ganglion?
otic ganglion or Arnold's ganglion
Postganglionic parasympathetic efferent fibers from the otic or Arnold's ganglion will communicate with what other cranial nerve branch?
the auriculotemporal branch of the mandibular division of the trigeminal
Peripheral afferent processes associated with receptors in the mastoid air cells, in the tympanic cavity or in the auditory tube arise from pseudounipolar neurons located in what ganglion of the ninth cranial nerve?
the superior glossopharyngeal ganglion or jugular ganglion
What is/are the target organ(s) monitoring blood pressure or blood physiology which are supplied by the ninth cranial nerve?
carotid body or carotid glomus and the carotid sinus
Ninth cranial nerve pseudounipolar neuron cell bodies monitoring general visceral sensation are located in which ganglion?
inferior glossopharyngeal ganglion or petrosal ganglion
Central sensory processes from ninth cranial nerve pseudounipolar neuron cell bodies monitoring general visceral sensation will synapse in what location of the brain?
cardiorespiratory nucleus of the nucleus solitarius
Peripheral sensory processes from the postsuical (posterior one third) tongue are conveyed in which cranial nerve?
the glossopharyngeal nerve