Sclerites are the segments that constitute the exoskeleton of arthropods. There are different types of sclerites depending on the position of the arthropod's body:
- tergites on the dorsal side;
- sternites on the ventral side;
- pleurites on the side.
Sclerites are essentially composed of chitin and are linked to each other by flexible membranes which allow the animal to move.
Sclerites are the body segments of the arthropods. © Bart Braun, Wikipedia, public domain