Loading....
Coupon Accepted Successfully!

ENT

Open Flashcards

Physiology of hearing and hearing loss

Question
4 out of 39
 

The cough response caused while cleaning the ear canal is mediated by stimulation of: [AIIMS Nov 12]



A The V Cranial nerve

B tnnervation of external ear canal by C" C2

C The X Cranial nerve

D Branches of the VII Cranial nerve

Ans. C The X cranial nerve Ref. BDC 4th/ed, p Vol. 3, p 185

"Irritation of the auric/ar branches of the vagus in the external ear (by ear wax, syring, etC.) may reflexly cause cough, vomittinq, or even death due to sudden cardiac inhibition."

Auricular branch of the vagus nerve is also known as Arnold's nerve or Alderman's nerve.

Also know

Similarly irritation of recurrent laryngeal nerve by enlarged lymph nodes in children may also produce a persistent cough.

Physiology of hearing and hearing loss Flashcard List

39 flashcards
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)
27)
28)
29)
30)
31)
32)
33)
34)
35)
36)
37)
38)
39)