In an orb-web-weaving spider, you can find seven types of silk glands, and what I have depicted here in this picture, let's start at the one o'clock position, there's tubuliform silk glands, which are used to make the outer silk of an egg sac.
Intr-un paianjen de panza circulara, putem gasi sapte tipuri de glande de matase si este ceea ce vreau sa va arat in aceasta imagine, sa incepem cu pozitia 1, gasim aici matasea gladulei tubiliformes care sintetizeaza matasea pentru fabricarea matasii exterioare a coconilor pentru oua.