5. Arterial supply
• Outer surface- deep auricular artery, branch
from 1st part of maxillary artery
• Inner surface- (A) Ant. Tympanic artery,
branch from 1st part of maxillary artery (B)
Post. Tympanic artery, branch of stylomastoid
artery arising from post. Auricular artery
6. Nerve supply
• Anterior half of lateral surface-
auriculotemporal nerve
• Posterior half of lateral surface- auricular
branch of vagus nerve
• Medial surface- tympanic branch of
glossopharyngeal through tympanic plexus
