Cranial Fossae, Foramina and Lobes of Brain (Task 4)

Question 1

Bones of anterior fossa

Answer 1

Frontal bones
Ethmoid bone with cribiform plate
Spehnoid bone

Question 2

Non bony structures contained by anterior fossa

Answer 2

Frontal lobes
Olfactory nerves
Olfactory Bulb
Olfactory Tract

Question 3

Bones of middle cranial fossa

Answer 3

Sphenoid
Parietal
Temporal

Question 4

Non bony structures contained by middle fossa

Answer 4

Temporal lobes
Pituitary gland
Foramens and canals for various neurovasculature including:
Carotid canals
Optic canals
Foramen ovale

Question 5

Bones of posterior cranial fossa

Answer 5

Temporal
Occipital
Parietal
Sphenoid

Question 6

Non bony structures contained by posterior fossa

Answer 6

Brainstem

Cerebellum

Question 7

Cranial nerve which never leaves skull

Answer 7

Vestibulocochlear (CN VIII)

Question 8

Nerves passing through superior orbital fissure

Answer 8

Occulomotor Nerve (CN III)
Trochlear Nerve (CN IV)
Opthalmic div. of Trigeminal Nerve (CN Va)
Abducens Nerve (CN VI)

Question 9

Nerves passing through Cribiform plate

Answer 9

Olfactory (CN II)

Question 10

Nerves passing through foramen rotundum

Answer 10

Maxillary div. of Trigeminal (CN Vb)

Question 11

Nerves passing through foramen ovale

Answer 11

Mandibular div. of Trigeminal (CN Vc)

Question 12

Nerves passing through internal acoustic meatus

Answer 12

Facial (CN VII)

Vestibulocochlear (CN VIII)

Question 13

Nerves passing through jugular foramen

Answer 13

Glossopharyngeal (CN IX)
Vagus (CN X)
Spinal Accessory (CN XI)

Question 14

Contents of foramen spinosum

Answer 14

Middle meningeal vessels

Meningeal branch of CN Vb

Question 15

Contents of inferior orbital fissure

Answer 15

Zygomatic branch of CN Vb
Ascending branches of pterygopalatine ganglion
Opthalmic vein