This high-yield revision note on Cranial Nerves Mnemonic: Dirty Trick for All Foramina covers everything examiners typically test under Oral Anatomy & Histology — structured as quick-reference tables, clinical correlations, mnemonics and previous-year-style high-yield points. It's built for last-mile revision before NEET MDS, INI-CET MDS and INBDE, so you can scan it in minutes instead of re-reading a whole textbook chapter.
| Foramen/Fissure | Structures Transmitted | Quick Trick |
|---|---|---|
| Cribriform plate | Olfactory nerve fibers (CN I) | "Cribriform = holes for smell wires" |
| Optic canal | Optic nerve (CN II), ophthalmic artery | "Optic canal = only the eye's own nerve + its artery" |
| Superior orbital fissure | CN III, IV, V1 (all 3 branches - lacrimal, frontal, nasociliary), VI, superior ophthalmic vein | "3,4,5(a),6 - all the eye-movers plus V1" |
| Foramen rotundum | CN V2 (Maxillary nerve) only | "ROtundum = ROund hole, one nerve only - V2" |
| Foramen ovale | CN V3 (Mandibular nerve), accessory meningeal artery, lesser petrosal nerve, emissary veins | "OVALE = Of Vast Amount - Loads Exit" (busiest of the trio) |
| Foramen spinosum | Middle meningeal artery/vein, nervus spinosus (meningeal branch of V3) | "SPINosum = Spine-shaped SPINE bone landmark, brings the meningeal ARTERY" |
| Foramen lacerum | Mostly filled with cartilage in life; internal carotid artery passes ACROSS its superior part (not truly through the foramen itself) | "LACERUM = Largely A Cartilage-filled Empty Room - Um, the carotid just crosses over it" |
| Internal acoustic meatus | CN VII, CN VIII, labyrinthine artery | "7 and 8 travel together into the ear region" |
| Jugular foramen | CN IX, X, XI, internal jugular vein (start) | "9-10-11, the last three before 12" |
| Hypoglossal canal | CN XII only | "Hypoglossal canal = home of ONLY 12" |
| Stylomastoid foramen | CN VII (facial nerve) exit after the middle ear | "Facial nerve's EXIT door from the skull, after leaving the internal acoustic meatus" |
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