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