Cranial fossa, cranial foramina and their nerves

anterior cranial fossa

Name the cranial fossa

middle cranial fossa

Name the cranial fossa

Posterior cranial fossa

Name the cranial fossa

frontal, ethmoid, sphenoid (lesser wing)

Which bones make up the anterior cranial fossa?

sphenoid (greater wing), temporal bone

Which bones make up the middle cranial fossa?

small part of temporal, all occipital bone

Which bones make up the posterior cranial fossa?

CN5 Trigeminal

Which cranial nerves has three branches which pass through 3 different foramina?

cribriform plate of ethmoid bone

Name the cranial foramen

CN1- olfactory

Which CN passes through the cribriform plate?

Optic canal

Name the cranial foramen

CN2 Optic Nerve

Which cranial nerve passes through the optic canal?

superior orbital fissure

Name the cranial foramen

occulomotor (3), trochlear (4), ophthalmic branch of the trigeminal nerve (5) and abducens (6)

Which cranial nerves pass through the superior orbital fissure?

Foramen rotundum

Name the foramen

Maxillary branch of trigeminal (5)

What cranial nerve passes through the foramen rotundum?

foramen ovale

Name the foramen

5- Trigeminal nerve (maxillary branch)

What cranial nerve passed through the foramen ovale?

foramen lacerum

name the foramen

foramen spinosum

name the foramen

internal acoustic meatus

name the foramen

CN7 Facial nerve, CN 8 Vestibulocochlear

Which cranial nerves pass through the internal acoustic meatus?

jugular foramen

name the foramen

9. Glossopharyngeal, 10. vagus, 11. accessory

which cranial nerves pass through the jugular foramen?

hypoglossal canal

name the foramen

12. Hypoglossal Nerve

which cranial nerve passes through the hypoglossal canal?

foramen magnum

name the foramen

End of brainstem, beginning of spinal cord

What main structures pass through the foramen magnum?