Duvernoy Gland

[guidofatherof5]

I ran across this article and got a chuckle out of it.
Thought some of you might also. Enjoy.
Here's the link.
Duvernoy's Glands and "Warm" Herping

Many snakes have a long strip of tissue, the superior labial gland, running from snout to behind the angle of the upper jaw. This gland is beneath the labial (lip) scales on either side of the head, and secretions are discharged into the furrow between the lip and gum. In many colubrid snakes, the back part of the superior labial gland is differentiated into a separate gland, called the Duvernoy’s gland. While the labial gland produces mucus secretions, the Duvernoy’s gland produces proteins, the substances that make up venom. Duvernoy’s glands come in three types, with Type I being the least harmful. Type III glands are found in lethal rear-fanged snakes such as boomslangs.