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Foramina of Skull
Anatomy of the Foramina of the Skull
| Question | Answer |
|---|---|
| Incisive fossa | Nasopalatine nerve, sphenopalatine vessels |
| Greater palatine forament | Greater palatine nerve and vessels |
| Lesser palatine foramen | Lesser palatine nerve and vessels |
| Foramen lacerum | Greater petrosal nerve, deep petrosal nerve, internal carotid artery (all across upper portion) |
| Pterygoid canal | Nerve of the pterygoid canal (greater and deep petrosal nerves), vessels of the pterygoid canal |
| Foramen ovale | Mandibular nerve (V3), lesser petrossal nerve, accessory meningeal artery |
| Foramen spinosum | Middle meningeal artery and vein, meingeal branch of V3 |
| Carotid canal | Internal carotid artery and plexus |
| Petrotympanic fissure | chorda tympani of facial nerve |
| Stylomastroid foramen | Facial nerve |
| Jugular fossa | CN IX, X, XI, Inferior petrosal sinus, internal jugular vein |
| Hypoglossal canal | Hypoglossal nerve |
| Foramen magnum | medulla oblongata/spinal cord, vertebral arteries and venous plexus, accessory nerve roots |
| Nasal slit | anterior ethmoidal nerve and vessels |
| anterior ethmoidal foramen | anterior ethmoidal nerve and vessels |
| foramina of cribiform plate | olfactory nerve (I) |
| posterior ethmoidal foramen | posterior ethmoidal nerve and vessels |
| Optic canal | optic nerve (II), opthalmic artery |
| superior orbital fissure | oculumotor nerve (III), trochlear nerve (IV), opthalmic nerve (VI) branches, abducens nerve (VI), superior opthalmic vein |
| foramen rotundum | maxillary nerve (V2) |
| Foramen ovale | madibular nerve (V3), lesser petrosal nerve, accessory meningeal artery |
| Foramen spinosum | Middle meningeal artery and vein, meningeal branch of V3 |
| Foramen lacerum | Not a true foramen (occluded by cartilage). Greater petrossal nerve, deep petrossal erve, and internal carotid artery PASS ACROSS upper end |
| Carotid canal | internal carotid artery and plexus |
| Hiatus of the greater petrosal nerve | greater petrosal nerve |
| Hiatus of the lesser petrosal nerve | lesser petrosal nerve |
| internal acoustic meatus | CN VII, VIII, labyrinthine artery |
| Jugular foramen | CN IX, X, XI, inferior petrosal sinus, sigmoid sinus/internal jugular vein |
| Hypoglossal canal | Hypoglossal nerve |
| Foramen magnum | Medulla oblongata/spinl cord, vertebral arteries and venous plexus, accessory nerve roots |
| Supraorbital notch/foramen | supraorbital nerve and vessels |
| Infraorbital foramen | infraorbital nerve and vessels |
| mental foramen | mental nerve and vessels |
| superior orbital fissure | CN III, IV, VI branches, VI, superior opthalmic vein |
| Inferior orbital fissure | Infraorbital nerve and vessels, zygomatic nerve, inferior opthalmic vein |
| Infraorbital groove | Infraorbital nerve and vessels |
| Optic canal | Optic nerve (II), opthalmic artery |
| Mandibular foramen | inferior alveolar nerve and vessels |
| Mental foramen | mental nerve and vessels |
Created by:
karkis77
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