The number and cycle of rat vibrissae according to topographic arrangement

Jeong-Nam KimDepartment of Biomedical Laboratory Science, Masan University MasanRepublic of Korea

Soo-Young KimDepartment of Anatomy, Konkuk University School of Medicine SeoulRepublic of Korea

Ju-Young LeeDepartment of Anatomy, Konkuk University School of Medicine SeoulRepublic of Korea

Kang-Jae ShinDepartment of Anatomy, Konkuk University School of Medicine SeoulRepublic of Korea

Young-Chun GilDepartment of Anatomy, Konkuk University School of Medicine SeoulRepublic of Korea

Ki-Seok KohDepartment of Anatomy, Konkuk University School of Medicine SeoulRepublic of Korea

Wu-Chul SongDepartment of Anatomy, Konkuk University School of Medicine SeoulRepublic of KoreaCorrespondence[email protected]

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Abstract

This study investigated the cycle of rat vibrissae by counting their number relative to their topographic arrangement. The average duration of maintaining single or double vibrissal shafts was analyzed. The ratio of the lifetime of the single and double shafts was around 3:2 weeks. The rostral and caudal vibrissae had relatively short and long cyclic durations, respectively; this difference may be related to their length and function.

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The number and cycle of rat vibrissae according to topographic arrangement

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The number and cycle of rat vibrissae according to topographic arrangement

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