Complicated cranial nerves Flashcards
Where is the trigeminal nerve’s sensory cell bodies
In the semilunar ganglion
Where does the trigeminal ganglion sit
Meckels cave under the dura in a depression on the petrous part of the temporal bone
what are the general affarents for the lacrimal nerve
lacrimal gland
general affarents from the forehead, anterior part of the scalp, upper eyelid, and frontal sinus come from the
frontal nerve
general affarents from the contents of the orbit, superior part of the nasal cavity, ethmoidal air cells, sphenoidal sinus, dura of the anterior cranial fossa, and superficial sensation from the dorsum of the nose
Nasociliary nerve
General affarents from the root of the nose
Infratrochlear nerve
what are the general affarents of V1 (opthalmic division) of trigeminal nerve
cornea, lacrimal gland, skin of forehead, scalp, eyelids, nose, superior part of nasal mucosa and paranasal sinuses (except maxillary), dura of anterior and posterior cranial fossae
what are the general affarents for V2 of the trigeminal nerve (maxillary division)
skin of face over maxilla, lower eyelid, upper lip, side of nose, maxillary teeth and gingivae, nasal mucosa, nasopharynx, maxillary sinuses, hard and soft palate, dura of middle cranial fossa.
Which ganglion is suspended in V2 of trigeminal
Pterygopalatine ganglion
Postganglionic PS: nasal and palatal mucosa, lacrimal gland
Postganglionic S: from ica plexus; same targets
what are some branches of the maxillary nerve
zygomatic, which divides into zygomaticotemporal and zygomaticofascial branch
- infraorbital nerve
- greater palatine
- lesser palatine
What are the GA of V3 division of trigeminal nerve
skin of mandible, lower lip, side of head, lower teeth and gingivae, TMJ, anterior 2/3 of tongue, floor of mouth, parotid gland, dura of middle cranial fossa
What are GE of V3 of trigeminal
muscles of mastication, mylohyoid, anterior belly of digastric, tensor tympani (middle ear), tensor veli palatini
What ganglions are suspended in V3 of trigeminal nerve
Otic ganglion: carries postganglionic parasympathetics to parotid gland
Submandibular gland:
-Preganglionic PS: submandibular gland
-Post ganglionic PS: submandibular and sublingual glands.
What are special affarent of V3
Taste fibers from anterior 2/3 of tongue
What are the general affarents for the fascial nerve
External acoustic meatus and skin of deep part of ear.