Greater auricular nerve

Question 1

Function of greater auricular nerve

Answer 1

Sensation to lower half of ear including ear lobe, helix, antitragus

Question 2

McKinney point

Answer 2

Greater auricular nerve crosses the midportion of the sternocleidomastoid muscle 6.5 cm below the external auditory canal. This landmark is known as McKinney point.

Question 3

Vein which is close to the greater auricular nerve

Answer 3

External jugular vein.

Greater auricular nerve courses in same plane as external jugular vein - useful landmark during dissection.

Question 4

Division of greater auricular nerve causes

Answer 4

Numbness of helix, lobule, antitragus