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On the Structure of the Glandular Swollen Thumbs of the Frog,Rana nigromaculata

Bulletin of the Faculty of Agriculture, Yamaguchi University Volume 8 Page 765-770
published_at 1957
Title
トノサマガエルの雌抱硬皮の構造
On the Structure of the Glandular Swollen Thumbs of the Frog,Rana nigromaculata
Creators Kiwaki Sukechika
Creators Kunimitsu Tamako
Source Identifiers
Creator Keywords
トノサマガエル 雌抱硬皮 生殖疣
The seasonal changes of the tissues of the glandular swollen thumbs of frogs were observed and measured. The swollen thumbs appear during breeding season. Thickness of the swelling is owing to the appearance of the papillary process on the epidermis and the development of the skin gland in the corium. The glands are alveolar and mucous glands. The gland epithelium is columnal and nucleus is in the base. The papillary process is present in May and June - the breeding season-butin July disappears and in September appears again, According to changes of the epidermis the glands of the corium increase or reduce their size and the length of the glandular epithelium. Strinctly,the change of the glands is present ealier than the changes in the epithelium.
Subjects
農学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学農学部
Date Issued 1957
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0513-1715
[NCID]AN00244250
Schools 農学部