Foramina of Skull Flashcards
Cribiform plate transmits ___
CN 1
Foramen Cecum transmits __
emissary veins from nasal cavity to superior sagittal sinus
Anterior ethmoidal foramen transmits ___
anterior ethmoidal n., a., v.
Posterior ethmoidal foramen transmits ___
posterior ethmoidal n., a., v.
Sphenopalatine foramen transmits ___
sphenopalatine artery and vein
(posterior lateral nasal branches & posterior septal branches)
nasopalatine nerve (CN V2)
posterior lateral nasal nerves (CN V2)
Optic canal transmits ___
CN II (optic nerve)
opthalmic artery
sympathetic fibers from internal carotid prexus
Superior orbital fissure transmits ___
CN 3, 4, V1, 6
Superior opthaljic vein
Lacrimal Artery
Sympathetic fibers from internal carotid plexus
Inferior orbital fissure transmits ___
Infraorbiatl nerve (CN V2) Zygomatic nerve (CN V2) (branches: zygomaticofacial n, zygomaticotemporal n)
Infraorbital a/v
zygomaticofacial a/v
zygomaticotemporal a/v
Supraorbital foramen / notch transmits ___
supraorbital n/a/v
Infraorbital foramen transmits ___
infraobrital n/a/v
Zygomaticotemporal foramen transmits ___
zygomaticotemporal nerve (CN V2) emerges from here onto temple
Zygomaticofacial foramen Transits ___
zygonaticofacial nerve (CN V2) emerges here onto face
Alveolar canal transmits ___
posterior superior alveolar nerve (CN V2)
posterior superior alveolar artery/vein
Foramen Rotundum transmits __
CN V2
Foramen Ovale transmits __-
CN V3
Accessory meningeal artery
Internal acoustic (auditory) meatus transmits ___
CN 7, 8
Labrynthine (internal auditory) artery
External acoustic (auditory) meatus transmits __
typmanic membrane (blocks entrance to middle ear)
Groove for pharyngotympanic (auditory) tube transmits __
cartilaginous portion of auditory tube
Stylomastoid foramen transmits __
CN 7
Petrotympanic fissure transmits __
chorda tympani nerve (CN 7)
anterior tympanic artery/vein
Hiatus for greater petrosal nerve transmits __
greater petrosal nerve (from CN 7)
Hiatus for lesser petrosal nerve transmits __
lesser petrosal nerve (CN 9)
Jugular foramen transmits ___
CN 9, 10, 11
Internal jugular vein
Hypoglossal canal transmits __
CN 12
Carotid canal transmits __
Internal carotid artery
Sympathetic (carotid) plexus of nerves from internal carotid nerve
Foramen lacerum transmits __
largely filled with fibrocartilage plug
Internal carotid artery runs above it to enter crania lvault
Pterygomaxillary fissure transmits __
Terminal branches of maxillary artery/veins
Pterygopalatine Fossa transmits __
Pterygopalatine ganglion
CN V2 branches
Branches of maxillary artery/veins
Pterygoid canal transmits __
Vidian nerve (nerve of pterygoid canal)
Pterygoid a./v. of maxillary
Pharynegal canal transmits __
Pharyngeal nerve
Pharyngeal branches of maxillary a/v
Palatine canal transmits __
greater palatine nerve
lesser palatine nerve
descending palating artery/vein
-> greater/lesser a/v
greater palatine foramen transmits __
greater palatine nerve
greater palatine a/v
lesser palatine foramen transmits transmits __
lesser palatine nerve
lesser palatine a/v
Incisive foramen transmits __
nasopalatine nerve
branches of sphenopalatine artery/vein
branches of greater palatin artery/vein (anastomose with sphenopalatine artery/vein)
Foramen spinosum transmits __
middle meningeal arteyr
meningeal branch of CN V3
Foramen magnum transmits __
Spinal cord/meninges
Ascending rootlets of CN 11
Vertebral arteries
Anterior/posterior spinal arteries
Condyloid canal transmits __
emissary veins from superficial veins of skull to sigmoid sinus
Mandibular foramen transmits __
inferior alveolar n/v/a
Mental foramen transmits __
mental nerve
