BONES

Question 1

WHAT ARE THE 3 TYPES/SHAPES OF BONES FOUND IN THE SKULL

Answer 1

flat
irregular
pneumatised (air spaces)

Question 2

WHAT ARE THE 8 BONES OF THE NEUROCRANIUM

Answer 2

frontal , parietal x2, temporal x2 , occipital , ethmoid , sphenoid

Question 3

WHAT ARE THE 14(15) BONES OF THE VISCEROCRANIUM

Answer 3

(ethmoid)
vomer (part of nasal septum)
mandible,
nasal x2,
lacrimal x 2 , small , part of orbit
zygomatic x2, cheek bones
palatine x2 form part of hard palate at back
maxillae x2, 2 sides of maxilla
inferior nasal conchae x2 inside nasal cavity

Question 4

ON WHAT BONE ARE THE STYLOID AND MASTOID PROCESSES FOUND

Answer 4

temporal bones

Question 5

PTERION

Answer 5

H shaped junction of sutures where frontal , parietal , temporal and sphenoid bones meet
structurally week , middle meningeal artery sits just below

Question 6

3 MAIN SUTURES OF THE SKULL

Answer 6

Coronal - anterior horizontal
Saggital - longitudanal
Lambdoid - posterior horizontal

Question 7

BREGMA

Answer 7

joining of coronal and sagittal sutures

Question 8

LAMBDA

Answer 8

joining of sagittal and lambdoid sutures

Question 9

INION

Answer 9

outermost protrusion of occipital bone

Question 10

WORMIAN BONES (sutural / accesory bones)

Answer 10

smalll ‘islands’ of bone seen within sutures most commonly lambdoid

Question 11

PIRIFORM APERTURE

Answer 11

pear shaped opening into cranium , split in two by nasal septum

Question 12

WHAT BONES FORM THE NASAL SEPTUM

Answer 12

superiorly ethmoid bone , inferiorly vomer

Question 13

NASION

Answer 13

junction between nasal and frontal bones

Question 14

GLABELLA

Answer 14

smooth part of frontal bone between eyebrows

Question 15

WHAT ARE THE 4 PAIRS OF PARANASAL SINSUES

Answer 15

maxillary
frontal
ethmoid - either side of bridge of nose
sphenoid - deep , behind ethmoid

Question 16

LIGAMENTUM NUCHAE

Answer 16

Attaches external occipital protuberance with spinous processes of cervical vertebrae