What nerve is most often affected in trigeminal neuralgia (tix douloureux)?
In Bells palsy, where is the facial nerve usually affected?
in the distal facial canal or at its exit from the stylomastoid foramen
What are the contents of the infratemporal fossa?
What groups of veins are found in the infratemporal fossa between the pterygoid muscles?
the pterygoid plexus of veins
What nerve passes behind the TMJ and over the zygomatic arch to supply sensory fibers to the lateral side of the head?
the superficial temporal artery
What are the boundaries of the infratemporal fossa?
anterior - posterior surface of the maxilla
posterior - styloid process of temporal bone
superior - infratemporal surface of grater wing fo the sphenoid
medial - lateral pterygoid plate of sphenoid
lateral - ramus of mandible
What is the origin and insertion of the lateral pterygoid muscle and the medial pterygoid muscle?
lateral - originates on the greater wing of sphenoid an dlateral surface of the lateral peterygoid plate. inserts into the capsule of the TMJ and the neck of the mandible
medial - originates on the medial surface of the lateral pterygoid plate and the maxillary tuberosity. inserts on the medial surface of the angle of the mandible
What is the lateral pterygoid's function? Medial?
lateral - protrudes and depresses the mandible and draw jaw to opposite side
medial - elevates and protrudes the mandible and draw the jaw to the opposite side.
What nerve carries postganglionic parasympathetic fibers to the parotid gland for salivery secretion? Where are the cell bodies?
the auriculotemporal nerve
cell bodies in the otic ganglion
What cranial nerve carries the preganglionic fibers to the otic ganglion?
CN 9 the glossopharyngeal
What are the 4 major sensory branches of the mandibular nerve?
inferior alveolar nerve (to teeth)
lingual nerve (to anterior 2/3 of tongue)
Buccal (to cheek)
auriculotemporal nerve (lateral side of the face)
The mental nerve is a terminal continuation of what nerve?
the inferior alveolar nerve
What nerve joins the linual nerve shortly after its origin from V3?
the Chorda tympani
To what ganglion does the chorda tympani nerve carry preganglionic parasympathetic fibers?
the submandibular ganlion
The taste fibers from the chorda tympani nerve have their cell bodies in what ganglion?
the geniculate ganglion