Arthropods Vocabulary

Arthropods VocabularyGanglion – collection of nerve cells

Malpighian tubules – extract wastes from blood and adds them to feces that move through the gut.

Chelicerae – fangs on the spider used to stab and paralyze prey.

Arthropods VocabularyPedipalps (palps) – second pair of

appendages of arachnids (spiders) that are near the mouth used as sensory such as smell/taste and grab prey.

Arthropods VocabularyBook lungs – a type of

respiratory organ in spiders and scorpions; they are deep pockets on the lots of folds that are moist; blood passing through them picks up oxygen from the surrounding air.

Arthropods VocabularyTracheal tubes (tracheae) – tiny tubes that carry air

(oxygen) directly to cells in some land arthropods; respiratory gases are exchanged across these tubes by diffusion.

Spiracles – breathing holes located along the side of the body of terrestrial arthropods

Spinnerets – organs in spiders spin web on backside

Arthropods VocabularyCompound eye – 1 eye made of many smaller

visual units which can see in all directions.

Carapace – hard outer shell

Mandible – mouthpart adapted for biting and grinding food.

Arthropods VocabularyMaxillae - chewing jaws located behind the

mandibles

Maxillipeds – holds food

Arthropods VocabularyAntennae – a pair of sense organs located

near front of head.

Antennules – smaller pair of sense organs

Arthropods VocabularyCheliped – big claw in crustaceans

Swimmerets - used in movement and reproduction

Arthropods VocabularyTelson – last division of

the body and forms the tail.

Uropod – flat broad tail (lobster)

Arthropods VocabularyThorax – body part that lies just behind the head

and and houses most of the internal organs. Abdomen – last (3rd) body segment of an

arthropod’s bodes most of the internal organs.

Arthropods VocabularyCephalothorax – region formed by the fusion

of the head with the thorax.