NBDE: ANATOMICAL SCIENCES: Foramina Flashcards
(52 cards)
a 26 year old female has been previously diagnosed with McCune-Albright syndrome. There is a bony fibrous dysplasia of the anterior cranial base leading to the encasement and narrowing of the optic canal. Although her vision is normal, there is concern that there will be compression of the optic nerve and which of other structure:
CN1, CN III, IV, VI, ophthalmic artery, ophthalmic veins
ophthalmic artery
the optic canal is located in what bone
lesser wing of sphenoid
the optic canal communicates with the _cranial fossa
middle cranial fossa
what are the only 2 things that run thru the optic canal
ophthalmic artery and the optic nerve
the cribriform plate with foramina is located in the _ bone and contains _ CN
ethmoid
CN1
the hypoglossal canal is located in the _ bone and contains CN _
occipital bone, CN XII (HYPOGOLOSSAL NERVE)
the carotid canal is located in the _ bone and contains the _
temporal bone
internal carotid artery
the lacrimal canal is located in the _ and bone and contains the
maxilla and lacrimal
nasolacrimal (tear duct)
the inferior orbital fissure is located in the _ and _ bone and contains
sphenoid and maxilla,
infraorbital and zygomatic branches of maxillary nerve (V2), infraorbital artery, and part of inferior ophthalmic vein
the superior orbital fissure is in the _ bone
sphenoid
what runs thru the superior orbital fissure
CN III, CN IV, VI, lacrimal, frontal, and nasociliary branches of ophthalmic nerve (V1), superior and inferior divisions of ophthalmic vein, sympathetic fibers from cavernous plexus
the optic canal and foramen are located in the _ bone and contain
sphenoid bone
CN II and ophthalmic artery
the stylomastoid foramen is located in the _ bone and contains which nerve
temporal
facial nerve VII
a 62 year old female visits the family physician with complaints of right sided hearing loss, ringing in the right ear (tinnitus), numbness over the right half of her face, and dizziness. the physician diagnoses her w/ an acoustic schwannoma that is occluding her right internal acoustic meatus. the internal acoustic meatus pierces the posterior surfaces of the petrous part of the temporal bone. the internal acoustic meatus transmits what two nerves?
facial nerve (VII) and vestibulochoclear (CN VIII)
facial nerve branches mnemonic
to zanza bar by motor car: from superior to inferior Temporal zygomatic buccal mandibular cervical
which foramina appears as a small round radioLUCENT area on the mandibular PREMOLAR and can be confused with a periapical abscess if not recognized correctly
mental foramen
the mandibular foramen is located on the medial surface of the ramus of the mandible just below the _
lingula
the mandibular foramen leads into the _ canal, which opens on the lateral surface of the body of the mandible at the _
mandibular
mental foramen
in relationship to the occlusal plane of the mandibular molars, the mandibular foramen is located _ the occlusal plane and _ to the molars
at or slightly above
posterior to the molars
the lingual is a tongue shaped projection of bone that serves as the attachment for the
sphenomandibular ligament
what 3 things travel thru the mandibular foramen?
IAN (inferior alveolar nerve) = branch of V3, artery, and vein
at the mental foramen the inferior alveolar nerve divides into the ) which exits the mental foramen and supplies the skin of the mental region, mucous membrane and attached gingiva of ipsilateral mandibular anterior and premolar teeth, and the __ which continues coursing thru the mandible and supplies the pulp chambers of anterior teeth and adjacent mucous membrane
mental nerve
incisive branch
the coronoid process is a site for
muscle attachments
the condylar process bears the __
head of the mandible
