What kind of body does a spider have?
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.
What is the front part of a spider called?
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.
How many sections does a skeleton spider have?
Introduction and Skeleton Spiders have their body divided into two sections, unlike the other commonly seen group of arthropods, the insects, who have their body divided into three sections.
What kind of eyes does a spider have?
Most spiders have eight but some have six, two, or even none at all. Posterior eye row: The back row of simple eyes. Cephalothorax (or prosoma): The anterior (or front) major body segment, literally a fusion of the head and thorax.
How many body parts do spiders have?
Spiders have 2 body parts, the cephalothorax and abdomen. They have 8 legs, 4 on each side. Another difference is that spiders do not have antennae, but insects do.
What is the anatomy of a spider?
The anatomy of spiders includes many characteristics shared with other arachnids . These characteristics include bodies divided into two tagmata (sections or segments), eight jointed legs, no wings or antennae, the presence of chelicerae and pedipalps, simple eyes, and an exoskeleton, which is periodically shed.
What are spider legs called?
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. Starting from the body end, these are the coxa, trochanter, femur, patella, tibia, metatarsus and tarsus.
Are there any spiders that are externally segmented?
The exception to this rule are the assassin spiders in the family Archaeidae, whose cephalothorax is divided into two parts by an elongated “neck”. In the majority of spiders, the abdomen is not externally segmented.
How are spiders different from all other arthropods?
Anatomically, spiders differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax and abdomen, and joined by a small, cylindrical pedicel. Unlike insects, spiders do not have antennae.
