The part of the ear that projects from the head, connecting to the external acoustic meatus.
Comment:
[function-note] "The purpose of the pinna is to collect sound. It does so by acting as a funnel, amplifying the sound and directing it to the ear canal. While reflecting from the pinna, sound also goes through a filtering process which adds directional information to the sound (see sound localization, head-related transfer function, pinna notch)."; [homology-note] "Mammals have a third type of tympanic ear. An external flap, the auricle or pinna, helps funnel sound waves down the external acoustic meatus to the tympanic membrane.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0000460", ontology="VHOG", source="ISBN:978-0030223693 Liem KF, Bemis WE, Walker WF, Grande L, Functional Anatomy of the Vertebrates: An Evolutionary Perspective (2001) p.420", source="http://bgee.unil.ch/"}; [taxon-note] "In various species, the pinna can also signal mood and radiate heat"
Synonyms:
exact_synonym:
auricle; auricle of ear; auricle of external ear; auricula; auricula (auris externa); pinna of ear