Part of the ear external to the tympanum (eardrum). It typically consists of a tube (the external auditory meatus) that directs sound waves on to the tympanum, and may also include the external pinna, which extends beyond the skull[GO]. [ http://en.wikipedia.org/wiki/External_ear http://amigo.geneontology.org/amigo/term/GO:0042473 ]

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, efo_slim, pheno_slim

definition
  • Part of the ear external to the tympanum (eardrum). It typically consists of a tube (the external auditory meatus) that directs sound waves on to the tympanum, and may also include the external pinna, which extends beyond the skull[GO].
depicted by
  • http://upload.wikimedia.org/wikipedia/commons/2/29/Gray907.png
external definition
  • The external part of the organ, which consists of an outer portion (external auditory meatus) which leads to the tympanum. [Dorian_AF, Elsevier's_encyclopaedic_dictionary_of_medicine, Part_B:_Anatomy_(1988)_Amsterdam_etc.:_Elsevier][VHOG]
external ontology notes
  • in XAO this includes and is only the tympanum
has broad synonym
  • auricular region
has exact synonym
  • outer ear
  • auricular region of head
has related synonym
  • auris externa
homology notes
  • Some species, like Amolops tormotus (Feng et al. 2006), have a cavity in front of the tympanic membrane which is considered to be an ear canal and thus an outer ear. (...) The ancestral lineage of amphibians separated from the mammalian lineage, approximately 350 million years ago, in the paleozoic era. Many of the important developments in the auditory systems emerged after the ancestral paths separated (Manley and Clack 2003). This implies that shared features, like the tympanic middle ear, developed independently in different vertebrate lineages.[uncertain][VHOG]
id
  • UBERON:0001691