foramina of the skull

Question 1

cribriform plate

Answer 1

CN I (olfactory n.) fibers

Question 2

foramen cecum

Answer 2

emissary v. from nasal cavity to superior sagittal sinus

Question 3

anterior ethmoidal foramen

Answer 3

anterior ethmoidal n a and v

Question 4

posterior ethmoidal foramen

Answer 4

posterior ethmoidal n a and v

Question 5

sphenopalatine foramen

Answer 5

1. sphenopalatine a and v (posterior lateral nasal branches and posterior septal branches)
2. nasopalatine nerve (from CN V2)
3. posterior lateral nasal nerves (from CN V2)

Question 6

optic canal

Answer 6

1. CN II (optic n.)
2. ophthalmic a. (branch of ICA)
3. sympathetic fibers from internal carotid plexus

Question 7

superior orbital fissure

Answer 7

CNs III, IV, V1, VI
superior ophthalmic v.
lacrimal a.
sympathetic fibers from internal carotid plexus

Question 8

inferior orbital fissure

Answer 8

infraorbital n. (from CN V2)
infraorbital a & v
zygomatic n. (from CN V2)- zygomaticotemporal NA&V and zygomaticofacial NA&V

Question 9

supraorbital foramen or notch

Answer 9

supraorbital NA&V