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・ Incisimura
・ Incision (band)
・ Incision and drainage
・ Incisional hernia
・ Incisions
・ Incisitermes
・ Incisitermes minor
・ Incisive
・ Incisive bone
・ Incisive canals
・ Incisive foramen
・ Incisive Media
・ Incisive papilla
・ Incisivosaurus
・ Incisor
Incisor procumbency
・ Incisor Ridge
・ Incisoscutum
・ Incisura
・ Incisura (gastropod)
・ Incisura anterior auris
・ Incisura apicis cordis
・ Incisura auriformis
・ Incisura lytteltonensis
・ Incisura remota
・ Incisura rosea
・ Incitare
・ Incitatus
・ INCITE
・ Incite (band)


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Incisor procumbency : ウィキペディア英語版
Incisor procumbency

In rodents, incisor procumbency refers to the orientation of the upper incisor, defined by the position of the cutting edge of the incisor relative to the vertical plane of the incisors. Proodont incisors have the cutting edge in front of the vertical plane, orthodont teeth have it perpendicular to the plane, opisthodont incisors have it behind the plane, and hyper-opisthodont teeth have the cutting edge even behind the back of the alveolus of the incisor.〔Steppan, 1995, pp. 16–17〕
Phyllotini are mostly opisthodont, but ''Auliscomys'' and ''Galenomys'' are orthodont and have sometimes even been described as proodont, and ''Eligmodontia'', ''Loxodontomys'', and some species of ''Calomys'' are hyper-opisthodont. ''Irenomys'', ''Reithrodon'', and ''Neotomys'', formerly classified as phyllotines, are also hyper-opisthodont.〔Steppan, 1995, p. 18〕 Oryzomyini are also mostly opisthodont, but ''Amphinectomys savamis'', ''Handleyomys fuscatus'', ''Melanomys caliginosus'', ''Mindomys hammondi'', ''Scolomys melanops'', and ''Sigmodontomys aphrastus'' are orthodont.〔Weksler, 2006, p. 43〕
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Incisor procumbency」の詳細全文を読む



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