Head 3

Question 1

Sinuses present at birth

Answer 1

Maxillary sinus and ethmoid sinus
(ME!)
M - 4-5 Months (first radiologic evidence
E - 1 year
S - 4 years
F - 6 years

Question 2

Tributaries of the superior meatus

Answer 2

Posterior ethmoidal sinus

Question 3

Tributaries of the middle meatus

Answer 3

Anterior and middle ethmoidal s.
Maxillary s.
Frontal s.

Question 4

Tributary of the inferior meatus

Answer 4

Nasolacrimal duct

Question 5

Kisselbach’s plexus

Answer 5

Sphenopalatine (maxillary)
Greater palatine (maxillary)
Anterior ethmoidal (ophthalmic)
Superior labial (facial)

Question 6

Describe the exernal auditory meatus

Answer 6

External 1/3 is cartilaginous

Internal 2/3 is bony

Question 7

Innervation of the auricle

Answer 7

Auricular branch of the vagus and facial nerves
Great auricular nerve
Auriculotemporal branch of trigeminal nerve
Lesser occipital nerve

Question 8

Layers of the tympanic membrane

Answer 8

Outer - cutaneous
Intermediate - fibrous
Inner - mucous

Question 9

Innervation of the tympanic membrane

Answer 9

External:
-auriculotemporal branch of trigeminal
-auricular branches of VII, IX,X
INTERNAL
-tympanic branch of the GLOSSOPHARYNGEAL NERVE (9)

Question 10

Where is the ocne of light?

Answer 10

Anteroinferior quadrant

Question 11

Describe the tympanic cavity

-

Answer 11

• contained within the PETROUS part of the TEMPORAL bone

- contains the CHORDA TYMPANI br of VII and the TYMPANIC PLEXUS of IX

Question 12

What membrane separates the scala media from scala vestibuli?

Answer 12

Reissner’s membrane
(MRV)
“Media rinses their vests”

Question 13

What membrane separates scala media from scala tympani?

Answer 13

Basilar membrane

“Media brings time”