Ear – external auditory canal

Question 1

External auditory canal also known as

Answer 1

Meatus

Question 2

Length of external auditory canal and length of its bony and cartilaginous part

Answer 2

24 mm
Outer 8 mm is cartilaginous
Inner 16 mm is bony (Made by Tympanic part of temporal bone)

Question 3

Which gland produces wax in ear

Answer 3

Cerruminous glands

Modified apocrine glands

Question 4

What is keratosis obturans

Answer 4

Absence of migration of keratin and wax out of ear

Question 5

Treatment of keratosis obturans

Answer 5

Canalplasty

Question 6

Direction of water we put in syringing for wax accumulation

Answer 6

Posterio superior

Question 7

There is insects in EAC what do you put

Answer 7

Put oil to kill it and then remove it

Question 8

The direction of EAC in children and adults

Answer 8

Children – nearly straight

Adults – inward,downward and forward

Question 9

How is the pinna pulled during examination of ear

Answer 9

Upward, outward and backward

Question 10

What is a natural defect in EAC in the cartilaginous part And further complication

Answer 10

Fissure of Santorini

The infection can reach parotid gland through this

Question 11

Actual defect in the bony part of EAC

Answer 11

Fissure of huschke