Arthropoda

Molting

Process in which an arthropod sheds its exoskeleton and manufactures a larger one to take its place.

gill bailer

leaf-like flap in a channel at the anterior opening of each branchial chamber in decapod crustaceans; by its beating, drives water forward in and out of the branchial chamber; found in the 2nd maxilla. , The 2nd maxilla has the large, flat, rectangular ___ ___ that generates the respiratory current through the branchial chamber.

Chelicerae

pair of appendages attached to the mouth that contains fangs that are used to stab and paralyze prey

Apodeme

site where the muscle is attached to the exoskeleton

Ballooning

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Trachea

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gill cleaner

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telopod

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Exoskeleton

A body covering, typically made of chitin, that provides support and protection

Malpighian tubules

An excretory organ that is unique to insects, empties into digestive tract and removes nitrogenous wastes from the hemolymph, also plays a role in osmoregulation.

Chitin

Exoskeleton made with this

Ommatidia

The photoreceptor cells in the crustacean compound eye are called. , One of the small optical units of the compound eye of arthropods

Scleratization

The process by which the cuticle of an arthropod is hardened by substances other than chitin

Mineralization

The process in which organic material is changed into inorganic material such as a fossil.

Cheliped

in arthropods, one of the pair of appendages that have claws, in arthropods, one of the pair of appendages that have claws.

Cephalothorax

region of a crustacean formed by the fusion of the head with the thorax. A body region composed of the head and thorax fused together

Book lungs

saclike pockets with highly folded walls for respiration, Organs of gas exchange in spiders, consisting of stacked plates contained in an internal chamber.