ID: 9

Jugular foramen
ID: 8

Intra acoustic meatus
ID: 7

Foramen spinosum
ID: 6

Foramen ovale
ID: 5

Foramen rotundum
ID: 4

Optic canal
ID: 3

Cribriform foramina
ID: 2

Crista galli
ID: 1

Diploe (spongy bone)
ID: 10

Groove for venous sinus
ID: 11

Hypoglossal canal
ID: 12

Occiptal bone
ID: 13

Frontal bone
ID: 14

Cribriform plate of ethmoid bone
ID: 15

Sphenoid bone
ID: 16

Sella turcica
ID: 17

Temporal bone
ID: 18

Petrous part of temporal bone
ID: 19

Parietal bone