Osteology - foramina/apertures Flashcards
(18 cards)
Foramina in the middle cranial fossa?
- Optic canal
- Superior orbital fissure
- Foramen rotundum
- Foramen ovale
- Foramen spinosum
- Foramen lacerum
- Groove or hiatus of greater petrosal nerve
Foramina in posterior cranial fossa?
- Foramen magnum
- Jugular foramen
- Hypoglossal canal
- Condylar canal
- Mastoid foramen
Foramen cecum:
Nasal emissary vein (1% of population)
Cribriform foramina in cribriform plate
Axons of olfactory cells in olfactory epithelium that form olfactory nerves
Anterior and posterior ethmoidal foramen
Vessles and nerves with same names
Optic canals
- Optic nerves (CN II)
- Opthalmic arteries
Superior orbital fissure
- Opthalmic veins
- Opthalmic nerve (CN V1)
- Oculomotor nerve (CN III)
- Trochlear nerve (CN IV)
- Abducent nerve (CN VI)
- Sympathetic fibers
Foramen rotundum
- Maxillary nerve (CN V2)
Foramen ovale
- Mandibular nerve (CN V3)
- Accessory meningeal artery
Foramen spinosum
- Middle meningeal artery and vein
- Meningeal branch of CN V3 (mandibular nerve)
Foramen lacerum
- Deep petrosal nerve
- Some meningeal arterial branches and small veins
Groove or hiatus of greater petrosal nerve
- Greater petrosal nerve
- Petrosal branch of middle meningeal artery
Foramen magnum
- Medulla and meninges
- Vertebral arteries
- Spinal accessory nerve (CN XI)
- Dural veins
- Anterior and posterior spinal arteries
Jugular foramen
- Glossopharyngeal nerve (CN IX)
- Vagus nerve (CN X)
- Superior bulb of internal jugular vein
- Inferior petrosal and sigmoid sinuses
- Menaingeal branches of ascending pharyngeal and occipital arteries
Hypoglossal canal
- Hypoglossal nerve (CN XII)
Condylar canal
Emissary vein that passes from sigmoid sinus to vertebral veins in neck
Mastoid foramen
- Mastoid emissary vein from sigmoid sinus
- Meningeal branch of occipital artery
Foramina in the anterior cranial fossa?
- foramen cecum
- cribriform foramina in cribriform plate
- anterior and posterior ethmoidal formina
