Foramen and other openings Flashcards
cribriform foramina
olfactory nerves (CN I)
optic canals
optic nerves (CN II) and ophthalmic arteries
foramen rotundum
maxillary nerve (CN V2)
superior orbital fissure
ophthalmic veins, ophthalmic nerve (CN V1), oculomotor nerve (CN III), trochlear nerve (CN IV), abducens (CN VI), sympathetic fibers
foramen ovale
mandibular nerve (CN V3) and accessory meningeal artery
foramen spinosum
middle meningeal artery and meningeal branch of CN V3
foramen lacerum
deep petrosal nerve and some meningeal arterial branches and small veins
foramen magnum
medulla and meninges, vertebral arteries, CN XI, dural veins, anterior and posterior spinal arteries
jugular foramen
glossopharyngeal (CN IX), Vagus (X), accessory (XI), superior bulb of internal jugular vein, inferior petrosal and sigmoid sinuses, and meningeal branches of ascending pharyngeal and occipital arteries
hypoglossal canal
hypoglossal nerve (CN XII)
location of superior orbital fissure
between greater and lesser wing of sphenoid bone, opens anteriorly into orbit
location of foramen rotundum
posterior to superior orbital fissure on greater wing of sphenoid
location of foramen ovale
posterolateral to foramen rotundum, oval shaped
location of foramen spinosum
posterolateral to foramen ovale, close to border of temporal-sphenoid bone
crescent of foramina
superior orbital fissure, foramen rotundum, ovale, spinosum (sky ride over sea)
