Others

Question 1

Tympanic cavity posterior wall

Answer 1

Facial canal - containing facial nerve and chorda tympani

Pyramidal eminence -
- Stapedius m attached to Pyrm em.
- Nerve to Stapedius contained in pyrm em. branching off Facial N.
Aditus to mastoid antrum

Question 2

Anterior wall

Answer 2

Eustachian tube opening
Carotid canal petrous part
Chorda tympani, after it passes across the tympanic memb and joins the then exits to join lingual nerve

Question 3

Inferior

Answer 3

Bulb of the jugular vein

Question 4

Superior

Answer 4

Nothing in it, composed of petrous temp bone

Question 5

Medial wall

Answer 5

Lateral semicircular canal bulge
Facial nerve canal bulge
Semicanal for tensor tympani muscle and muscle

Oval window.
Promontory of cochlea
Round window

Question 6

Intermediate nerve

Answer 6

Contains the sensory and parasympathetic fibers of the facial nerve. Upon reaching the facial canal, it joins with the motor root of the facial nerve at the geniculate ganglion.

Question 7

Tympanic cavity divisions

Answer 7

Epitympanic recess of Atti

Mesotympanium

Hypotympanic recess

Question 8

Contents of epitympanic recess

Answer 8

of Atti

Head of malleus
Body of incus and ligaments
Chorda tympani

Question 9

Antibiotics for acute purulent otitis media

Answer 9

7-10 days

Amoxicillin and clavulanic acid

Cephalosporins

Macrolides

Fluoroquinolones but only in adults.

Antiinflammatory drugs

Nasal drops

Question 10

Benign tumors of the paranasal sinuses

Answer 10

Papilloma

Osteoma

Ossifying fibromas

Metaplastic osteogenesis.

Hemangiomas

Angiofibromas

Question 11

Malignant tumors of the paranasal sinuses

Answer 11

3 most common:
Squamous cell carcinoma
Adenoid cystic carcinoma
Mucoepidermoid carcinoma

others:
melanoma
adenocarcinoma
hemangiopericytoma
olfactory neuroblastoma
sarcoma, fibrosarchoma, chondrosarcoma, rhabdomyosarcoma
lymphoma
metastases
undifferentiated sinonasal carcinoma