Anatomy Of A Spider

Unlike other insects the most populous type of arthropods spiders have bodies divided into two segments or tagmata singular. A beautiful image showing the internal anatomy of a spider.

Spider Anatomy

The anatomy of spiders includes many characteristics shared with other arachnids.

Anatomy of a spider. Even a relatively large spider can have fangs with very sharp points. The abdomen is the posterior of the two body regions of a spider. Arthropod animal with eight legs and an unsegmented body.

At the front of the cephalothorax we find. In spiders the first pair of appendages the chelicerae are like two segment fingers the outer segment being a hollow fang that injects venom virtually all spiders have poison glands though some are far more venomous than others. 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.

The bodies of spiders range in size from about 1 mm up to 9 cm. The anatomy of a spider is very interesting. Non complex sight organ of a spider.

Spider eyes and other senses. Seat of the mental capacities of a spider. Internal anatomy of a spider.

Non complex sight organ of a spider. All spiders have 8 legs 2 body parts cephalothorax and abdomen fang like chelicerae and antenna like pedipalps click on the terms below to learn more about each body part. Everything else is self explanatory.

The smallest of full grown spiders can be less than 4 mm. These are the cephalothorax formed by a fusion of the head and thorax cephalon means headbrain and the abdomen. Spiders have 8 legs.

Sucking part of the digestive tract. They range from large stocky burrowers to petite colourful web builders to everything in between. Venom producing glandular organ of a spider.

This sets them apart from insects which have only 6 legs. They are designed to help them move with ease and to conserve energy. The body of spiders is divided in two major parts.

A spiders body is divided into two regions prosoma anterior part and ophisthosoma the posterior part. There are around 4000 species of spiders in australia and the diversity of species is truly incredible. These are also called prosoma front body and opisthosoma rear body respectively.

This jumping spiders main centre eyes are very close together. While all have the basic features listed above it is not always easy to see or distinguish them. Prosoma contains head antenna and the legs.

Even though there is plenty of variation when you look at the size and colors of spiders they all have general characteristics.

Spider Anatomy For Artists John Muir Laws