3) TYMPANIC CAVITY + SKULL CONNECTIONS

Question 1

Tympanic cavity

2 parts of musculotubarian canal

Answer 1

a) (Semi)canal of tensor tympani muscle
b) (Semi)canal of the auditory tube

Question 2

Tympanic cavity

Musculotubarian canal

→ (Semi)canal of tensor tympani muscle

→ From where to where?

Answer 2

External base of the skull

Question 3

Tympanic cavity

Musculotubarian canal

→ (Semi)canal of the auditory tube

→ From where to where?

Answer 3

External base of the skull

Question 4

Tympanic cavity

Caroticotympanic canaliculi

→ From where to where?

Answer 4

Carotid canal

(Caroticotympanic canaliculi. Canaliculi caroti- cotypmpanici. Small channels in the wall of the carotid canal for arterial and nerve branches to the middle ear from the internal carotid artery and the carotid plexus. C)

Question 5

Tympanic cavity

Canaliculus of chorda tympani

→ From where to where?

Answer 5

Facial canal

Question 6

Tympanic cavity

Stapedius canaliculus

→ From where to where?

Answer 6

Facial canal

Question 7

Tympanic cavity

Tympanic canaliculus

→ From where to where?

Answer 7

Fossula petrosa

(The petrosal fossula is a small depression in the bony ridge between the carotid canal and the jugular fossa, occupied by the tympanic ganglion of the glossopharyngeal nerve.)

(external base of the skull)

Question 8

Tympanic cavity

Canal of the lesser petrosal nerve

→ From where to where?

Answer 8

Middle cranial fossa

(opens on the anterior aspect of the pyramid)

Question 9

Tympanic cavity

Mastoid antrum

→ From where to where?

Answer 9

Mastoid air cells