Lecture 6

Question 1

Name the common ear infections

Answer 1

Acute and chronic otitis media, vertigo, sensorineural hearing loss, tinnitus

Question 2

Why is it hard to deliver drugs to the inner ear?

Answer 2

Because of the barrier between the blood and fluid filed spaces

Question 3

What is ear wax made up of?

Answer 3

Sebum, dead skin cells, sweat and dirt

Question 4

What is the function of ear wax?

Answer 4

Protective coating and traps particulates

Question 5

What are the causes of impaction?

Answer 5

Narrow auditory canal, overproduction of cerumen or cotton buds

Question 6

How is ear wax removed and how should it not be removed?

Answer 6

Removed using drugs to loosen ear wax and DO NOT USE EAR BUDS

Question 7

Name the two types of tympanic membrane perforations

Answer 7

Acute and chronic

Question 8

What does the lamina propria provide?

Answer 8

Collagen rich environment and provide structural support

Question 9

Name the 4 non-invasive delivery systems

Answer 9

Hydrogels, chemical permeation enhancers, nanocarriers, peptides

Question 10

Name the 4 invasive delivery systems

Answer 10

Hydrogels, nanopeptides, ultrasound, pump/ catheter