Lec 1. Ear development

Question 1

The pinna arises from: 
a. the first and second pharyngeal arches 
b. the statoacoustic ganglion 
c. the otic vesicle 
d the otic placcode

Answer 1

a. the first and second pharyngeal arches

Question 2

Anotia is what?

a. a small auricle
b. missing ossicles
c. an absent auricle
d. lack of neural network development

Answer 2

c. an absent auricle

Question 3

In general in the womb which frequencies does the foetus react to first?

a. high
b. medium
c. low
d. all frequencies easily

Answer 3

c. low

Question 4

Innervation of the inner ear normally starts to take place at what time during foetal development?

a. 2 weeks
b. 10 weeks
c. 24 weeks
d. 40 weeks

Answer 4

c. 24 weeks

Question 5

Programmed cell death is known as:

a. exocytosis
b. apoptosis
c. differentiation
d. phagocytosis

Answer 5

b. apoptosis