Inside Base Of Skull

Question 1

Floor of skull divided into three _ which accommodate the brain

Answer 1

Cranial fossae

Question 2

The fossae are _

Answer 2

Cup-like depressions

Question 3

The three fossae have a _ appearance

Answer 3

Stair

Question 4

_ tallest step _ lowest step

Answer 4

Anterior cranial fossa

Posterior fossa

Question 5

Nose and eyes lie under _ fossae

Answer 5

Anterior cranial

Question 6

Floor formed by frontal bone (orbital plates) and _ (2)

Answer 6

Ethmoid bone

Part of sphenoid bone

Question 7

Extending upwards from cribriform plate is a process called the _

Answer 7

Crista galli

Question 8

A process aka

Answer 8

Projection

Question 9

Floor of butterfly-shaped middle cranial fossa is formed by _ centrally

Answer 9

Body of sphenoid bone

Question 10

Floor of butterfly-shaped middle cranial fossa is formed by _ laterally (2)

Answer 10

Greater wing of sphenoid

Temporal

Question 11

Depressions in floor of middle cranial fossa contain _ of brain

Answer 11

Temporal lobes

Question 12

_ is largest of cranial fossae

Answer 12

Posterior fossa

Question 13

Posterior fossa contains _ of brain (3)

Answer 13

Cerebellum

Pons

Medulla oblongata

Question 14

Floor and posterior wall of posterior cranial fossa are formed mainly by _

Answer 14

Occipital bone

Question 15

Anterior wall of posterior cranial fossa leading up to middle cranial fossa is formed by _ part of occipital bone

Answer 15

Basilar

Question 16

Anterior wall of posterior cranial fossa leading up to middle cranial fossa is formed by _ parts of temporal bone (2)

Answer 16

Petrous

Mastoid

Question 17

Anterior wall of posterior cranial fossa leading up to middle cranial fossa is formed by _ bone

Answer 17

Sphenoid