Innervation of the ear

Question 1

What’s the general sensory supply to the green part of this diagram?

Answer 1

CN V3

(Mandibular division of trigeminal nerve) - it supplies the superior part of the external acoustic meatus and most of the tympanic membrane

Question 2

Give the general sensory supply to the blue part of this diagram?

Answer 2

CN X

The vagus nerve supplies the inferior part of the EAM and part of the tympanic membrane

Question 3

Give the general sensory supply of the yellow dots on this diagram

Answer 3

Facial nerve / CN VII

Question 4

What nerves are represented by the purple areas of the diagram?

Answer 4

C2 and C3 spinal nerves