Card Set Information
Trigeminal Nerve CN
Med School - Trigeminal Nerve Review
What pharyngeal arch derivates are innervated by CN V?
1st pharyngeal arch
What is the trigeminal/Meckel's Cave and what is located within it?
Envagination of dura posterolateral to the cavernous sinus
What is located in within the trigeminal ganglion?
Sensory nerve cell bodies - GSA
What is the first branch of the Ophthalmic Nerve and what does it innervate?
: Meningeal Branch
: Tentorium cerebelli and other posterior dura
Prior to exiting through the SOF, where does the V1 pass through?
What does V1 divide into after passing through the SOF?
What are the divisons of the frontal nerve and what do they innervate?
: Supraorbital, Supratrochlear
: Upper eye lid, forehead, bridge of the nose, and the central part of the anterior 2/3 of the scalp
What does the lacrimal nerve innervate?
Lateral portion of the eye: Lacrimal gland, conjunctiva, skin at the lateral margin of the orbit
What eye sensory fibers are sent by the nasocilliary n.?
Long ciliary nerves
Short ciliary nerves
What structures are innervated by the posterior ethmoidal nerve?
Posterior ethmoidal air cells
What is innervated by the infratrochlear nerve?
Medial part of the eye: skin, conjunctiva and lacrimal sac
What structures are innervated by the anterior ethmoidal nerve?
Mucosa of anterior ethmoidal air cells
Anterior part of the nasal cavity
Skin of the distal part of the dorsum of the nose
What is the first branch of the maxillary nerve prior to exiting through foramen rotundum?
Middle Meningeal Nerve
What does the maxillary nerve pass through after leaving FR?
What branches come out of hte pterygopalatine ganglion?
Posterior superior lateral nasal nerves
What is innervated by the sensory nerves passing through the pterygopalatine galglion (V2 nerves, no synapse)?
Ethmoidal Air cells
Palate (soft and hard)
What does the zygomatic nerve innervate?
Skin of anterior sygomatic
Skin fo anterior temproal region
What innarves the teeth, gums and the maxillary sinus?
Posterior, middle, anterior: Superior alveolar nerve
What type of sensory innervation is given to nerves that contain the branchiomotor component?
Proprioceptive sensory fibers
What ganglion is associated with the mandibular nerve (v3)?
What is the otic ganglion functionally and physically associated to?
: Glossopharyngeal Nerve
What 2 branches arise from V3 in the maint runk?
Medial Pterygoid Nerve
What is the path of the spinous nerve?
Exits through foramen ovale
Reenters through foramen spinosum
What does the medial pterygoid nerve innervate?
Medial Pterygoid muscle
Tensor Veli Palatini
What do the anterior division branches of V3 supply?
: Masseter, temporalis, lateral pterygoid
: Buccal nerve
What does the buccal nerve innervate?
Cheek mucosa and adjacent gingiva
What is the path of the auricotemporal nerve, what does it travel with, and what does it innervate?
: Arround middle meningeal artery
: With parasympathetic fibers from otic ganglion and sympathetic fibers from mdidle meningeal plexus
: Parotid gland, tempperomandibular joint, external acoustic meatus, exterior surface of tympanic membrane, superficial temporal region
What does the lingual nerve innervate and what joins it?
: General sensation to anterior 2/3 of tongue
: Chorada tympani branch of facial nerve
What goes through the submandibular ganglion?
Chorda Typani branch for anterior 2/3 of taste
: Submandibular and sublignaul salivary glands
Where does the inferior alveolar nerve innervate?
What does the mental branch exit through and innervate?
: Mental foramen
: Skin of chin, lower lip, adjacent mucosa
What is the final branch of the posterior division of V3?
: Mylohyoid, anterior belly of digastric
An inferior alveolar nerve block is difficult, why?
Lingula is in the way
For local anesthesia of face, what's used?
If an anerysum of internal carotid is located near the foramen lacerum, what parts of the trigeminal nerve are affected?
If an anerysum of the internal carotid is located inferior to the anterior clinoid process, what part of V is affected?
What is the pterygopalatine ganglion functionally related to?
What is trigeminal neuralgia and its other name?
: Tic Douloureux
: Excuciating pain along one or more branches of V