The head is the anterior-most division of the body [GO].
Comment:
[homology-note] "Vertebrate evolution has been characterized by a fresh and vast array of cranial structures that collectively form the head.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0001644", ontology="VHOG", source="ISBN:978-0072528305 Kardong KV, Vertebrates: Comparative Anatomy, Function, Evolution (2006) p.82", source="http://bgee.unil.ch/"}