What Skeletons Do Spiders Have?
WouterA spider’s exoskeleton is a hard fibrous material, which is used as a support system. It protects the body and the internal organs from predators. In addition, it provides an additional level of protection against adverse weather conditions.
The exoskeleton consists of chitin, which is a type of protein that is similar to the hairs of humans and animals. It offers the spider protection against predators, while providing structure and flexibility.
Spiders have eight legs with six joints on each. The legs are covered with hairs. This helps the spider move fast. The legs are also sensitive to air vibrations.
The spider’s external appendages include its legs, pedipalps, and eyes. The hind-gut contains a sac where the excretory organs open. In addition, the spider’s heart is located in the midline of the body. Several species of spiders have valves on their legs to prevent deflation.
Spiders do not have a spine, but they do have an external shell, which is composed of chitin. The shell does not expand like human tissue, which gives the spider better protection against predators. However, its legs can become hard. If the legs become hard, the spider will be unable to move.
As the spider grows, the exoskeleton will no longer be able to hold the body together. Consequently, the spider will molt. The old skeleton will be broken down and the new one will grow. The process of molting requires the spider to raise the rate of its heart.
