Stuck on a problem? Get great tutoring at an affordable price with Chegg. Click here to join and get your 1st 30 minutes Free!

External auditory canal

From Biology-Online Dictionary
(Redirected from External Auditory Canal)
Jump to: navigation, search

Definition

noun

A canal of the auditory system between the auricle (pinna) and the tympanic membrane (eardrum).


Supplement

Tthe external auditory canal is sometimes referred to as simply auditory canal. It consists of cartilaginous and bony parts. It is about 2.5 cm in length and is lined with skin and tiny hairs. Cerumen is produced in the outer third of the cartilaginous portion of the canal to help prevent bacteria, fungi, insects and water from entering the ear. It is involved in transmitting sound waves.


Synonyms:

Compare: