Foramina of skull - middle cranial fossa
Terms
undefined, object
copy deck
- Boundaries of middle cranial fossa?
-
(anterior) lesser wing of sphenoid bone
(posterior) petrous ridge of temporal bone - Name the foramina in the middle cranial fossa. (there are 7)
-
-optic canals
-superior orbital fissure
-foramen rotundum, ovale, spinosum
-foramen lacerum
-groove/hiatus of greater petrosal nerve - Contents of OPTIC CANAL
-
optic nn. (CN II)
ophthalmic aa. - contents of SUPERIOR ORBITAL FISSURE
-
ophthalmic vv.
ophthalmic br. of trigeminal (CN V-1)
CN III/oculomotor
CN IV/trochlear
CN VI/abducent
sympathetic fibers - contents of FORAMEN ROTUNDUM
- maxillary br. of trigeminal (CN V-2)
- contents of FORAMEN OVALE
-
mandibular br. of trigem (CN V-3)
accessory meningeal a. - contents of FORAMEN SPINOSUM
-
middle meningeal a/v
meningeal br of mandibular n (CN V-3) - contents of FORAMEN LACERUM (closed by cartilage; structures pass horizontally across rather than vertically through)
-
internal carotid a.
(along with its venous and symp. plexuses) - contents of GROOVE/HIATUS OF GREATER PETROSAL N.
-
greater petrosal n.
petrosal br. of middle meningeal a. - contents & location of CAROTID CANAL
-
location: posteromedial to sphenoid bone in petrous temporal bone
contents: ICA and its plexuses enter cranium here