Ear canal


Ear canal
Ear-anatomy-text-small-en.svg
Anatomy of the human ear.
Details
Precursorgroove (cleft) of the first branchial arch.[1]
Arteryanterior part: superficial temporal artery
posterior part: posterior auricular artery
Veinsuperficial temporal veins, external jugular vein, pterygoid plexus
Nerveauriculotemporal nerve, great auricular nerve, auricular branch of vagus nerve
Lymphsuperficial cervical lymph nodes, deep cervical lymph nodes
Identifiers
Latinmeatus acusticus externus
MeSHD004424
TA98A15.3.01.045
A02.1.06.055
TA26867
FMA61734
Anatomical terminology

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 pinna to the eardrum and is about 2.5 centimetres (1 in) in length and 0.7 centimetres (0.3 in) in diameter.


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