system anatomy - holes of the skull/what goes through them
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| parietal foramina | emissary veins
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| condylar canal | Emissary vein from sigmoid sinus to vertebral veins in neck
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| supraorbital foramen | supraorbital n (branch of V1)
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| cribiform plate | olfactory n (CN I)
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| optic canal | optic n (CN II)
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| superior orbital fissure | Ophthalmic veins (superior), Oculomotor nerve (CN 3), Trochlear nerve (CN 4), Ophthalmic nerve (CN 5-1), Abducens nerve (CN 6)
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| foramen rotundum | maxillary n (V2)
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| foramen ovale | Mandibular branch (V3) of trigeminal n. (CN 5), Lesser superficial petrosal nerve (CN 9)
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| foramen spinosum | middle meningeal vessels
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| foramen lacerum | Carotid artery crosses close by, usually filled with cartilage in situ
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| carotid canal | internal carotid artery
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| internal acoustic meatus | CN VII and VIII
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| stylomastoid foramen | CN VII
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| jugular foramen | CN IX, X, and XI and sigmoid sinus
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| hypoglossal canal | hypoglossal n (CN XII)
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| foramen magnum | spinal cord, meninges, vertebral arteries, spinal roots of CN XI, Border between spine and brain stem
Vertebral venous plexus
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| greater palatine | greater palatine n (branch of V2)
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| incisive foramen | Anastamosis between posterior septal branch of sphenopalantine artery and greater palantine a.
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| inferior orbital fissure | maxillary div. of CN V (V2)
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| mandibular foramen | inferior alveolar n (V3)
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| mental foramen | mental n (V3)
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| nasolacrimal canal | nasolacrimal (tear) duct
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| zygomaticofacial foramen | zygomaticofacial n (branch of V2)
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| infraorbital foramen | infraorbital n (branch of V2)
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| petrotympanic fissure | auriculotemporal n. (branch of V3), CN7(chorda tympani)
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| Sella Turcica | fossa for pituitary gland
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| Pterygomaxillary fissure | Descending palantine a
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| Pterygopalatine fossa | Descending palantine a.
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| Sphenopalantine foramen | Sphenopalantine a. (nosebleeds)
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Created by:
marsbarsm
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