6) External base of the skull and connections

Question 1

External base of the skull

Jugular foramen

→ From where (to where) does it go?

Answer 1

Posterior cranial fossa

Question 2

External base of the skull

Condylar canal

→ From where (to where) does it go?

Answer 2

Posterior cranial fossa

Question 3

External base of the skull

Foramen ovale

→ From where (to where) does it go?

Answer 3

Middle cranial fossa

Question 4

External base of the skull

Foramen spinosum

→ From where (to where) does it go?

Answer 4

Middle cranial fossa

Question 5

External base of the skull

Carotid canal

→ From where (to where) does it go?

Answer 5

Middle cranial fossa

Question 6

External base of the skull

Stylomastoid foramen

→ From where (to where) does it go?

Answer 6

the end of facial canal

Question 7

External base of the skull

Pterygoid canal (of Vidius)

→ From where (to where) does it go?

Answer 7

Pterygopalatine fossa

Question 8

External base of the skull

Cochlear canaliculus (opens on the inferior aspect of pyramid with the external aperture)

→ From where (to where) does it go?

Answer 8

Inner ear

Question 9

External base of the skull

Tympanic canaliculus
starts from fossula petrosa

→ From where (to where) does it go?

Answer 9

Tympanic cavity

Question 10

External base of the skull

Musculotubarian canal

→ From where (to where) does it go?

Answer 10

Tympanic cavity

Question 11

External base of the skull

• *Mastoid canaliculus**
• starts from jugular fossa*

→ From where (to where) does it go?

Answer 11

Tympanomastoid fissure

Question 12

External base of the skull

Sphenopetrous fissure

→ From where (to where) does it go?

Answer 12

Middle cranial fossa

Question 13

External base of the skull

Petrooccipital fissure

→ From where (to where) does it go?

Answer 13

Posterior cranial fossa