Flashcards in Final Exam Deck (32)
Because of its function, the seventh cranial nerve is often called the?
Great Motor Nerve of the Face
What are the names given to the afferent root of the seventh cranial nerve?
The nervus intermedius, the nerve of Wrisberg
What classifications of fibers are conveyed at the apparent origin of the seventh cranial nerve?
Branchial efferent, visceral efferent, somatic afferent, special visceral
What is the name of the location for multipolar branchial efferent neurons of cranial nerve VII?
Facial motor nucleus
What is the opening through which the seventh cranial nerve exits the cranial vault?
Internal acoustic meatus of the temporal bone
What is the name of the afferent ganglion for the seventh cranial nerve?
Geniculate ganglion, genicular ganglion
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 the posterior belly of the digastric
What will the parasympathetic efferent pathways of the seventh cranial nerve supply?
The lacrimal, submandibular, sublingual, lingual, and mucosal glands
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 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
The continuation of the great petrosal nerve exits the middle cranial fossa by what opening?
Vidian canal or pterygoid canal of the sphenoid bone
The vidian canal opens into what region of the head?
The pterygopalatine region, sphenopalatine region
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 Meckel's ganglion will become incorporated in which cranial nerve branch?
Maxillary nerve of the trigeminal
The maxillary division of the cranial nerve V exits the pterygopalatine region via what opening?
The inferior orbital fissure
What bones converge to form the inferior orbital fissure?
Sphenoid maxillary, palatine, and zygomatic
The parasympathetic pathway to the lacrimal gland will involve branches from which cranial nerves?
Facial and trigeminal nerves
What immediate branch of the maxillary nerve will convey postganglionic parasympathetic efferent fibers to the lacrimal gland?
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 ophthalmic nerve branch will contain postganglionic parasympathetic efferent fibers?
Postganglionic parasympathetic efferent fibers from the ophthalmic nerve will innervate which gland?
What is the nucleus of origin for the preganglionic parasympathetic fibers carried in the seventh cranial nerve for the submandibular and sublingual glands?
Superior salivatory nucleus
Which immediate branch of the seventh cranial nerve will convey preganglionic parasympathetic efferent fibers to the submandibular and sublingual 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