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en.wikipedia.org/wiki/Spider_anatomy

Some spiders, such as the dewdrop spiders , even eat the silk of other spider species. Appendages. Spiders typically have eight walking legs (insects have six). They do not have antennae; the pair of appendages in front of the legs are the pedipalps (or just palps). Spiders' legs are made up of seven segments.

en.wikipedia.org/wiki/Spider

The only extensor muscles in spider legs are located in the three hip joints (bordering the coxa and the trochanter). As a result, a spider with a punctured cephalothorax cannot extend its legs, and the legs of dead spiders curl up.

www.kidzone.ws/lw/spiders/facts02.htm

KidZone Spider Facts The Body of a Spider. Spiders have two body segments. The front segment is called the Cephalothorax. The spider’s eyes, mouth fangs, stomach, brain and the glands that make the poison are on this part of the body. The legs are connected to this part, as well. Most spiders have eight eyes, but some have less.

infinitespider.com/spider-legs-work

The spider has two main body part, the fused head and thorax, called the cephalothorax (2), the abdomen (3), and 8 legs (1). (Photo: Wiki Commons). All eight spider legs are attached to the cephalothroax for a good reason.

www.microscopy-uk.org.uk/mag/artjan00/spileg.html

Since spiders are easy to find and abundant it is not difficult to study these interesting creatures. If you like to study a prepared slide like I did, go to the OnView Shop to order spider legs or whole mounts of spiders and insects.

spiders.ucr.edu/daddylonglegs.html

Another creature often called daddy-longlegs are actually spiders. These long-legged spiders are in the family Pholcidae. Previously the common name of this family was the cellar spiders but arachnologists have also given them the moniker of "daddy-longlegs spiders" because of the confusion generated by the general public.

cosmosmagazine.com/biology/the-science-of-spider-paws

The science of spider paws. ... Hairy legs are also valuable to spiders. The final segment of a spider’s leg is called a tarsus, and its hairs – known as the tarsal comb – fulfil a lot of ...

animals.howstuffworks.com/arachnids/spider1.htm

Spider Blood. The spider's blood, called hemolymph, circulates oxygen, nutrients and hormones to the different organs in the body.Unlike humans, spiders have an open circulatory system.The spider's simple heart-- a tube surrounded by a muscle, with a one-way valve on each end -- pumps blood into the body cavity, all around the spider's organs.Organs get oxygen because they're soaki...

www.answers.com/Q/What_are_6_legged_insects_called

A Tegenaria Gigantea Spider - can travel in a speed of about 1.73 ft/sec (1.17 mph), but it has eight legs. I'll give you a hint for the one with six legs, it's green and mean looking and can ...

www.webmd.com/.../cosmetic-procedures-spider-veins

Varicose veins are large, raised, swollen blood vessels that twist and turn. They usually develop in the legs and can be seen through the skin. Spider veins are smaller, red, purple, and blue ...