Cranial Opening and its Contents
Terms
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- Openings of Anterior Cranial Fossa
- (1) Foramen caecum (2) Olfactory foramina in Cribiform Plate
- Openings of Middle Cranial Fossa
- (1) Optic Canal (2) Superior Orbital Fissure (3) Foramen Rotundum (4) Foramen Ovale (5) Foramen Lacerum (6) Foramen Spinosum (7) Hiatus of Greater Petrosal N.
- Openings of Posterior Cranial Fossa
- (1) Internal Acoustic Meatus (2) Jugular Foramen (3) Foramen Magnum (4) Hypoglossal Canal
- Contents of Foramen Caecum
- Emissary Vein
- Contents of Olfactory foramnia of Cribiform Plate
- Olfactory N (CN I)
- Contents of Optic Canal
- (1) Optic N (CNII) (2) Ophthalmic arteries
- Contents of Superior Orbital Fissure
- (1) CN III (2) CN IV (3) CN V-1 (4) CN VI (5) Ophthalmic Veins
- Contents of Foramen Rotundum
- CN V-2 : Maxillary N.
- Contents of Foramen Ovale
- (1) CN V-3: Mandibular N. (2) Accessory Meningeal Artery
- Contents of Foramen Spinosum
- (1) Middle Meningeal Artery (2) Middle Meningeal Veins (3) Meningeal branch of V-3
- Contents of Foramen Lacerum
- Internal Carotid artery (passes by, does not go through)
- Contents of Hiatus Greater Petrosal
- (1) Greater Petrosal N. (2) Petrosal branch of Middle Meningeal Artery
- Contents of Internal Acoustic Meatus
- (1) CN VII (2) CN VII (3) Labyrinthine Vessels
- Contents of Jugular Foramen
- (1) CN IX (2) CN X (3) CN IX (4) Superior bulb of internal jugular vein (5) Inferior Petrosal Sinus (6) Sigmoid Sinus
- Contents of Foramen Magnum
- (1) Medulla and Meninges (2) Vertebral arteries (3) Spinal Roots of CN XI (4) Dural Veins (5) Anterior and Posterior Spinal Arteries
- Contents of Hypoglossal Canal
- CN XII