What is the function of cephalothorax?
The cephalothorax or prosoma is the anterior most of the two body parts of arachnids (the other part being the abdomen or opisthosoma). The cephalothorax features the eyes, mouth and legs of the arachnid. The cephalothorax is more rigid than the abdomen and contains the muscles used to operate the limbs.
What’s the difference between a abdomen and cephalothorax?
As nouns the difference between abdomen and cephalothorax is that abdomen is (obsolete) the fat surrounding the belly while cephalothorax is (anatomy) the fused head and thorax of spiders and crustaceans.
What is the cephalothorax made of?
The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind.
What is the function of Chelicera?
The first pair, the chelicerae, often have claws or fangs. They are used to capture prey (spiders), transport a spermatophore (sunspiders, some mites and ticks), produce sounds (sunspiders, some spiders), cut strands of silk (web-dwelling spiders), and produce silk (pseudoscorpions).
What is the difference between thorax and cephalothorax?
As nouns the difference between thorax and cephalothorax is that thorax is the middle of three distinct divisions in an insect, crustacean or arachnid body while cephalothorax is (anatomy) the fused head and thorax of spiders and crustaceans.
What are the 2 body parts of most Chelicerates called?
Chelicerates’ bodies consist of two tagmata, sets of segments that serve similar functions: the foremost one, called the prosoma or cephalothorax, and the rear tagma is called the opisthosoma or abdomen.
What are the function of maxillipeds in crayfish?
Two pairs of maxillae hold solid food, tear it, and pass it to the mouth. The second pair of maxillae also helps to draw water over the gills. Of the eight pairs of appendages on the cephalothorax, the first three are maxillipeds, which hold food during eating.
What is the difference between abdomen and cephalothorax?
As nouns the difference between abdomen and cephalothorax is that abdomen is (obsolete) the fat surrounding the belly while cephalothorax is… As nouns the difference between abdomen and cephalothorax is that abdomen is (obsolete) the fat surrounding the belly while cephalothorax is…
What are abdominal muscles?
Your abdominal muscles are a set of strong bands of muscles lining the walls of your abdomen (trunk of your body). They’re located toward the front of your body, between your ribs and your pelvis. There are five main muscles in the abdomen:
What organs are found in the cephalothorax?
Most of the sensory organs, mouthparts, and locomotion appendages are prominent in the cephalothorax. Usually, the cephalothorax is covered with a harder cuticle than the rest of the body, which makes it a rigid structure. The external structure that covers this region is called the carapace in crustaceans.
What is cephalothorax in arthropods?
Cephalothorax is simply the region of the arthropod body that comprises the organs and systems of both head and thorax. Chelicerates and crustaceans are the main arthropod groups with the fusion of head and thorax into one unit while the cephalothorax is not present in other groups such as insects.