Exam 2 CN VII Facial Flashcards
The sensory root of the facial cranial nerve
Nervus Intermedius
The apparent origin of the facial N lies at the inferior pontine sulcus, just lateral to the recess between what two structures?
Olive Restiform Body (Inferior cerebellar peduncle)
Name four cranial nuclei associated with facial and the modalities
Nucleus of Facial N - Branchial Efferent
Superior Salivatory Nucleus - Visceral Efferent
Tractus Solitarius - Special Sensory
Spinal Nucleus of Trigeminal - Somatic Afferent
Name the target organs of the cranial nuclei associated with facial
Nucleus of Facial N - facial and auricular muscles
Superior Salivatory Nucleus - all glands of head except integumentary and parotid
Tractus Solitarius - taste
Spinal Nucleus of Trigeminal - skin of auricular concha and EAM
Name the nucleus which sends visceral motor fibers to the submandibular, sublingual, and lacrimal glands
Superior Salivatory Nucleus
Name the visceral efferent cranial nucleus and its peripheral ganglion
Superior Salivatory Nucleus and Genicular Gangion
At the lateral end of the acoustic meatus, the facial N enters the facial canal to reach this
Stylomastoid foramen
Name 4 nerves which communicate with facial at the stylomastoid foramen
Glossopharyngeal
Vagus
Great Auricular
Auriculotemporal
Name two ganglia which communicate with the genicular ganglion
Pterygopalatine Ganglion
Otic Ganglion
Name the modalities of the Greater Petrosal Nerve
Visceral Efferent
Special Sensory
The greater petrosal N conveys between what?
Genicular Ganglion and N of the pterygoid canal
The deep petrosal N conveys between what?
Internal carotid plexus and N of the pterygoid canal
The external petrosal N conveys between what?
Middle meningeal sympathetic plexus and Genicular ganglion
The lesser petrosal N conveys between what?
Tympanic plexus and Otic ganglion
In the foramen lace rum, the greater petrosal N joins with what nerve to become the nerve of the pterygoid canal?
Deep Petrosal N from Internal Carotid Plexus
Before the facial N emerges from the stylomastoid foramen, it receives the auricular N from what?
Vagus
Name the nervous communications in sequence from the genicular ganglion to the pterygopalatine ganglion for the visceral efferent fibers
Genicular Ganglion - Greater Petrosal N of Facial N - Nerve to the Pterygoid Canal - Pterygopalatine Ganglion
Name the two nerves which join and become the nerve to the pterygoid canal
Greater Petrosal N
Deep Petrosal N
Name the nerve which conveys the middle meningeal sympathetic plexus to the genicular ganglion
External Petrosal N
Name the nerve which communicates with the posterior branch of the great auricular nerve
Posterior Auricular N
The cervical branch of the facial nerve communicates with what?
Transverse cutaneous nerve of neck
Name two branches of the facial nerve in the facial canal
Nerve to stapedius
Chorda Tympani
Name three branches of the facial nerve at the exit of the stylomastoid foramen
Posterior Auricular
Digastric
Stylohyoid
Name five branches of the facial nerve on the face
Temporal Zygomatic Buccal Marginal Mandibular Cervical nerves
Name the nerve which arises from the facial nerve opposite the pyramidal eminence on the posterior tympanic wall
Nerve to the stapedius
Name the nerve which passes the middle tympanic cavity through the anterior and then posterior canaliculi
Chorda tympani of Facial Nerve
Name the modalities of the chorda tympani
Visceral Efferent
Special Sensory
The chorda tympani joins this nerve
Lingual N of Mandibular N
Name the nerve which supplies the occipital belly of the epicranium
Occipital N of Posterior Auricular N
Name the nerve which supplies the intrinsic muscles of the lateral surface of the auricle
Temporal N of Facial Nerve
Name the 6 intrinsic muscles of the auricle
Helicis major Helicis minor Tragicus Antitragicus Transversus auriculae Oblique auriculae
Name the nerve which supplies the frontal belly of the occipitofrontalis
Temporal N of Facial N
Name the two nerves which innervate the orbicularis oculi
Zygomatic N of Facial N
Temporal N of Facial N
The superficial branches of the buccal nerve join with what two nerves?
Infratrochlear N of Nasociliary N
External Nasal N of Anterior Ethmoidal N
The levator anguli oris and the zygomaticus minor are innervated by what?
Upper deep branch of Buccal N of Facial N
Name the nerve which innervates risorius
Marginal Mandibular N of Facial N
Name two nerves which communicate with the posterior auricular nerve of the facial nerve
Posterior branch of the Great Auricular N
Lesser Occipital N
Name the nerve which innervates the corrugator supercilii
Temporal N of Facial N
The procerus is innervated by what?
Superficial branch of Buccal N of Facial N
The zygomaticus major is innervated by what?
Upper deep branch of Buccal N of Facial N
The transverse cutaneous cervical nerve communicates with what?
Cervical nerve of Facial N
Name the sequence from superior salivatory nucleus to submandibular ganglion
Superior Salivatory Nucleus - Facial N - Genicular Ganglion - Chorda Tympani - Lingual N - Submandibular Ganglion
Facial Paralysis is known as
Bell’s Palsy
