-
Tagma
The fusion of two or more body segments.
-
Procuticle
Deep and thick, made of chitin and proteins, as well as calcium sometimes.
-
Epicuticle
Thinner and superficial, made of lipids and proteins, repels water and provides protection from dehydration.
-
Ecdysis
Molting. The old shell is lost so the new shell can take its place.
-
Tracheal system
Insect respiratory system, uses many pores to feed oxygen directly to its tissue.
-
Compound eyes
advanced eyes that specialize in color and motion.
-
Malpigian tubules
A more efficient excretory system, reduce water loss in waste expulsion.
-
Subphylum Trilobita
Extinct. Trilobites; Bottom dwellers, similar characteristics of horseshoe crabs. Could roll up like pill bugs.
-
Subphylum Myriapoda
Tagmatized into a head and trunk, houses class Chilopoda and Diplopoda.
-
Class Chilopoda and Diplopoda
The centipedes and millipedes respectfully. Chilo's have one pair of legs per segment while the Diplo have 2 pairs.
-
Subphylum Chelicerata
Scorpions, spiders, ticks, etc.; Head and thorax are combined into cephalothorax.
-
Chelicerae and pedipalps
Modified appendages, they handle food.
-
Spider fang
Modified appendage, secretes digestive fluids.
-
Gnathobase
Horseshoe crab appendage, grinds their food.
-
Subphylum Crustacea
Crabs, lobsters, etc.; Mostly marine, pill bug being an exception. Have mandibles.
-
Cervical groove
carapace ends at this region, the end of the carapace.
-
Carapace
Hard cover covering the head of the crayfish.
-
Atennules and antenna
Specialized appendages for sensory perception.
-
Maxillae and mandibles
Maxillae moves food to the mandibles, whom crush food.
-
Maxillipeds
Modified appendages that make up mouth parts after the mandible.
-
Walking legs
Bigger legs used to walk around or help swim.
-
Chelipad
The pincer, used in defense.
-
Uropod and telson
the "fins" on the crayfish, used to help swim.
-
Copulatory swimmeret
used by males to help with mating
-
Seminal receptacle
Found on females, expels eggs for fertilization.
-
Statocyst
A balance sensory receptor.
-
Gills and Gill chamber
Used for gas exchange.
-
Bailer
Moves constantly to keep a current on the gills.
-
Cardiac and pyloric stomache
Churn and chew food.
-
Gastric teeth
Hard teeth like structure found in the pyloric stomach.
-
Ganglia
clusters of neuron cell bodies, act as the brain.
|
|