出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/01/23 23:24 UTC 版)
The prothoracic glands are either of a pair of endocrine glands located in the prothorax of certain insects and regulating molting. They have a ectodermal origin and secrete ecdysteroids, such as ecdysone and 20-hydroxyecdysone.