Ear canal

Ear canal
Anatomy of the human ear.
Details
Precursor	Groove (cleft) of the first branchial arch[1]
Artery	Anterior part: superficial temporal artery posterior part: posterior auricular artery
Vein	Superficial temporal veins, external jugular vein, pterygoid plexus
Nerve	Auriculotemporal nerve, great auricular nerve, auricular branch of vagus nerve
Lymph	Superficial cervical lymph nodes, deep cervical lymph nodes
Identifiers
Latin	meatus acusticus externus
MeSH	D004424
TA98	A15.3.01.045
TA2	6867
FMA	61734
Anatomical terminology [edit on Wikidata]

The ear canal (external acoustic meatus, external auditory meatus, EAM) is a pathway running from the outer ear to the middle ear. The adult human ear canal extends from the auricle to the eardrum and is about 2.5 centimetres (1 in) in length and 0.7 centimetres (0.3 in) in diameter.