Brain structures of the Anterior Cranial Fossa
frontal lobes and olfactory nerves, bulbs, and tracts
Brain structures of the Middle Cranial Fossa
temporal lobes and pituitary gland
Brain structures of the Posterior Cranial Fossa
cerebellum
pons
medulla oblongata
Foramina of the Anterior Cranial Fossa
- openings in ethmoid’s cribriform plate
Foramina of the Middle Cranial Fossa
Foramina of the Posterior Cranial Fossa
Structures in foramen cecum
frontal emissary vein
Structures in openings in ethmoid’s cribriform plate
olfactory nerve filaments
Structures in optic canal
optic nerve and ophthalmic artery
Structures in superior orbital fissure
Structures in foramen rotundum
maxillary nerve (CNV2)
Structures in foramen ovale
Structures in foramen spinosum
Structures in foramen lacerum
nothing of consequence; internal carotid artery crosses it horizontally; inlifethis foramen is filled with cartilage, and this cartilage forms the floor of the anterior end of the carotid canal
Structures in internal acoustic meatus
Structures in jugular foramen
Structures in foramen magnum
Structures in hypoglossal canal
hypoglossal nerve (CNXII)
Which opening connects lateral ventricles to the third ventricle?
2 interventricular foramina or foramina of Monroe
Which opening connects fourth ventricle to subarachnoid space?
-median aperture or
median foramen of Magendie
-2 lateral apertures or
2 lateral foramina of Luschka
3 branches of vertebral artery
a. posterior spinal arteries (paired)
b. anterior spinal artery
c. posterior inferior cerebellar arteries (paired)
5 branches of basilar artery
a. anterior inferior cerebellar arteries (paired)
b. labyrinthine arteries (paired)
c. pontinearteries(several)
d. superior cerebellar arteries (paired)
e. posterior cerebral arteries (paired) – terminal branches
5 arteries of Circle of Willis
a. posterior cerebral arteries
b. posterior communicating arteries
c. internal carotid arteries
d. anterior cerebral arteries
e. anterior communicating artery