Anatomy Of A Spider

Spider eyes and other senses. The bodies of spiders range in size from about 1 mm up to 9 cm.

Spider Anatomy Worksheet Studyladder Interactive Learning

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.

Anatomy of a spider. The body of spiders is divided in two major parts. Non complex sight organ of a spider. They range from large stocky burrowers to petite colourful web builders to everything in between.

This sets them apart from insects which have only 6 legs. Non complex sight organ of a spider. The anatomy of spiders includes many characteristics shared with other arachnids.

Sucking part of the digestive tract. At the front of the cephalothorax we find. Spiders have 8 legs.

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. A spiders body is divided into two regions prosoma anterior part and ophisthosoma the posterior part.

These are the cephalothorax formed by a fusion of the head and thorax cephalon means headbrain and the abdomen. 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. They are designed to help them move with ease and to conserve energy.

Prosoma contains head antenna and the legs. There are around 4000 species of spiders in australia and the diversity of species is truly incredible. Even though there is plenty of variation when you look at the size and colors of spiders they all have general characteristics.

Seat of the mental capacities of a spider. The smallest of full grown spiders can be less than 4 mm. These are also called prosoma front body and opisthosoma rear body respectively.

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

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. Arthropod animal with eight legs and an unsegmented body. Internal anatomy of a spider.

Everything else is self explanatory. Venom producing glandular organ of a spider. Even a relatively large spider can have fangs with very sharp points.

The anatomy of a spider is very interesting.

World Of Arachnids Anatomy And Physiology Of Spiders