Term Name: external acoustic meatus
Synonyms: auditory canal, auditory meatus, ear canal, external acoustic tube, external auditory canal, external auditory meatus, external auditory tube
Definition: A tube running from the outer ear to the middle ear. The human ear canal extends from the pinna to the eardrum and is about 26 mm in length and 7 mm in diameter.
Ontology: Cell Ontology [UBERON:0001352]

Relationships
develops from: 1st arch pharyngeal cleft
is part of: external ear
has parts: cartilage of external acoustic meatus cartilaginous external acoustic tube epithelial cell of external acoustic meatus external acoustic meatus osseus part outer epithelial layer of tympanic membrane
is a type of: anatomical conduit ectoderm-derived structure endoderm-derived structure