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• Classification and division of bones of the skull • Characteristic features of bones of the skull


Which part of the cranium makes up the superior, lateral, posterior walls of the skull?


Which part of the cranium contains the floor of the cranial cavity?

Cranial cavity

Which cavity is enclosed by the cranium and contains the brain?

Sagittal suture

Which main suture is located where the parietal bones articulate with each other?

Coronal suture

Which main suture is located where the parietal bones meet the frontal bone?

Lamboid suture

Which main suture is located where the parietal bones meet the occipital bone?

Squamous suture

Which main suture is located where the parietal bones meet the sphenoid and temporal bones?

Occipitomastoid suture

There are 2 small additional sutures. The sphenoparietal suture and the _______________ ______

Temporal bones

Which paired bones form the infero-lateral part of the skull?

Parietal bones

Apart from the temporal bones, what are the other paired bones in the skull?

Mandibular fossa

Which fossa is oval shaped and meets the conyle of the mandible to form the temperomandibular joint?

Tympanic region

Which region of the temporal bones surround the external auditory meatus (EAMs)?

Styloid process

Which needle like process lies below the EAMs?

Mastoid process

Which process contains mastoid air cells?

Stylomastoid foramen

Which foramen allows cranial nerve 7 to leave the skull?

Petrous part

Which part of the temporal bones contains the arcuate eminence?

Carotid canal

Which canal transmits the 2 internal carotid arteries into the cranial cavity?

Jugular foramen

Which foramen allows the passage of the internal jugular vein and cranial nerves 9, 10 and 11?

Frontal bones

Which bone contains the supraorbital margins?

Superior orbital foramina

Which foramina allows the supraorbital artery and nerve to pass to the forehead?


What is the name of the smooth portion between the orbits?

Anterior cranial fossa

Which cranial fossa supports the frontal lobes of the brain?


The frontal bone articulates with the sphenoid bone- true or false?

occipital bone

Which bone forms the skulls posterior wall and base?

lateral part

Which part of the occipital bone contains the occipital condyles?

basilar part

which part of the occipital bone contains the basilar artery?

Foramen magnum

What is the name of the large opening at the base of the cranium through which the spinal cord passes?

occipital condyles

Which condyles articulate with cervical vertebrae 1

Internal occipital crest

What is the name of the ridge which extends inferiorly from internal occipital protuberance and allows for attachment of the dura mater?

dura mater

What is the name of the outer layer of the meninges?

Posterior cranial fossa

Which cranial fossa protects the cerebellum of the brain?


The occipital bone articulates with the ethmoid bone- true or false?

sphenoid bone

Which bone is butterfly shaped and articulates with all the other cranial bones?

hypophyseal fossa

What is the name of the 'seat on the saddle' of the sella turcica where the pituitary gland is located?,

lesser wing of sphenoid

What is the name of the projection of the sphenoid bone that forms the posterior border of the anterior cranial fossa?

pterygoid processes

Which two bony processes descend from the body of the sphenoid bone and anchor the chewing muscles?

optic foramina

Which foramina of the sphenoid bone allows cranial nerve 2 to pass to the eyes?

optic groove

Which groove allows cranial nerves 3, 4 and 5 to pass to the eyes to control the eye movements?

ethmoid bone

Which perpendicular plate separates the nasal cavities and orbits (between the sphenoid and nasal bones)?

paired cribiform plates

which paired plates have olfactory foramina to allow the olfactory fibres to pass to the brain?

crista galli

vertical projection of the ethmoid bone allows attachment of the dura mater?


what is the collective name of the three membranes that cover the brain and spinal cord. Consisting of - the dura mater, pia mater, and arachnoid mater?

perpendicular plate

which part of the ethmoid bone forms part of the nasal septum?

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