The Skull

Question 1

The Skull is joined together by

Answer 1

sutures

Question 2

the skulls sutures are

Answer 2

fibrous joints that fuse in adulthood

Question 3

Bones of the calvarium

Answer 3

frontal, parietal, occipital

Question 4

bones of the cranial base

Answer 4

ethmoid, sphenoid, temporal

Question 5

the sutures of the skull dont fuse until after birth because

Answer 5

they permit passes through the birth canal and rapid growth of the brain

Question 6

craniometric points of the skull

Answer 6

• coronal suture
• sagittal suture
• lamboid suture
• lambda
• bregma

Question 7

flatbones of the skull form via

Answer 7

intramembranous ossification

which is the direct production of bone from pre-cursor cells

Question 8

Pnuematized bones

Answer 8

appear dark on xray because they are air filled

Question 9

diploe is

Answer 9

spongey bone between two layers of conpact bone

Question 10

paranasal sinuses functions

Answer 10

1. reduce the weight of the skull
2. humidify and heat inhaled air
3. increase the resonance of speech
4. crumble zone to protect vital structures

Question 11

the 5 paranasal sinuses

Answer 11

• frontal
• ethmoid
• nasal
• maxillary
• sphenoid

Question 12

craniosynostosis definition

Answer 12

premature suture ossification, causing skull growth to be restricted in one direction and overcompensated in another

Question 13

endoscopic trans-sphenoidal surgery definition

Answer 13

used to remove pituitary tumours less invasively by going through the sphenoidal sinus

Question 14

cranium parts

Answer 14

• neurocranium (brain)
• viscerocranium (jaw/face)

Question 15

neurocranium parts

Answer 15

• calvaria (top)
• cranial base (bottom)