…Most spiders have three pairs of these protrusions (four or three and one in the spider family, two or three in the trapdoor spider family), which are called the anterior, middle and posterior pairs, respectively. Each protrusion has numerous spinning tubes, which connect to different spinning glands (glands that secrete silk material), and the glands and ducts that secrete different materials depend on the purpose of the silk. There are usually seven types of glands, and many ducts that spin silk, with some having more than 1,000. … *Some of the terminology that mentions "spinning tube" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…多くのクモにはこの突起が3対あり(キムラグモ類では4対または3対と1個,トタテグモ類では2対または3対),前から順に前対・中対・後対と呼ばれる。それぞれの突起には多数の吐糸管spinning tubeがあり,これらは異なった糸腺spinning gland(糸物質を分泌する腺)とつながり,糸の用途によって分泌される腺と管が異なる。腺はふつう7種類,糸を紡出する管は多数あり,多いものでは1000以上もある。… ※「spinning tube」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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