Anal segment - The last segment; it is where waste (in the form of pellets) leaves the body. Antennae - Two sensory organs (feelers) located towards the front of the millipede. Each antenna is made of 7 jointed segments. Collum - The first segment just behind the head; it protects the rear surface of the head. Eye - The two compound eyes are located on the head. Head - The head has two antennae, two eyes, and the mouth. Labrum - The area just above the mouth. Mandibles - These large, toothed cutting surfaces are used for eating; each mandible is made of two segments. Pairs of Legs - Most segments have two pair of legs; these are called diplosomites. The first few segments have only one pair of legs; they are called somites. The second-to-last segment has no legs. Each leg has a tiny claw. Sternites - The underside of each segment, between the legs, which is relatively unprotected (also called the sternum). When in danger, the millipede curls up, protecting the underside. Tergites - The upper portion of each segment (also called the tergum). The tergum is covered with a hard, protective exoskeleton. Trunk - The body of the millipede (excluding the head).