What is meant by the cephalothorax?

Definition of cephalothorax : the united head and thorax of an arachnid or higher crustacean.

What is a cephalothorax abdomen?

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 do you mean by abdomen?

(AB-doh-men) The area of the body that contains the pancreas, stomach, intestines, liver, gallbladder, and other organs.

What is cephalothorax Class 9?

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 does abdomen mean in biology?

abdomen. [ ăb′də-mən ] In vertebrates, the portion of the body between the thorax and pelvis, containing the stomach, intestines, liver, and other organs. In mammals, the abdomen is separated from the thorax by the diaphragm. In arthropods, the last, most posterior segment of the body.

Where is your abdomen?

The abdomen (commonly called the belly) is the body space between the thorax (chest) and pelvis. The diaphragm forms the upper surface of the abdomen. At the level of the pelvic bones, the abdomen ends and the pelvis begins.

What is abdomen biology?

The abdomen (colloquially called the belly, tummy, midriff, tucky or stomach) is the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. The abdomen is the front part of the abdominal segment of the torso. The area occupied by the abdomen is called the abdominal cavity.

What is a abdomen on a spider?

Abdomen – the belly, also called the opisthosoma. It contains the guts, heart, reproductive organs, and silk glands. Pedicel – the spider’s waist – it connects the cephalothorax and the abdomen.

What is abdomen in human body?

The abdomen contains many vital organs: the stomach, the small intestine (jejunum and ileum), the large intestine (colon), the liver, the spleen, the gallbladder, the pancreas, the uterus, the fallopian tubes, the ovaries, the kidneys, the ureters, the bladder, and many blood vessels (arteries and veins).

What is a abdominal?

Listen to pronunciation. (ab-DAH-mih-nul) Having to do with the abdomen, which is the part of the body between the chest and the hips that contains the pancreas, stomach, intestines, liver, gallbladder, and other organs.

Where is a female abdomen?

Picture of the Abdomen. The abdomen (commonly called the belly) is the body space between the thorax (chest) and pelvis. The diaphragm forms the upper surface of the abdomen. At the level of the pelvic bones, the abdomen ends and the pelvis begins.

What is a cephalothorax and in which arthropod class is it found?

cephalothorax In some members of the phylum Arthropoda, the fused head and thorax. It is found in members of the Chelicerata (classes Merostomata, Arachnida, and Pycnogonida), and in most Crustacea.

Where is a spider’s abdomen?

What does cephalothorax mean in a sentence?

Definition of cephalothorax : the united head and thorax of an arachnid or higher crustacean Examples of cephalothorax in a Sentence Recent Examples on the Web Opillonids, also called harvestmen, consist of one basic body segment — plus legs — while spiders have two main body parts: the cephalothorax and abdomen.

What are the two parts of the cephalothorax?

…divided into two parts, the cephalothorax (prosoma) and the abdomen (opisthosoma). The legs are attached to the cephalothorax, which contains the stomach and brain. The top of the cephalothorax is covered by a protective structure, the carapace, while the underside is covered by a structure called the sternum, which has…

What is the difference between cephalothorax and prosoma?

For cephalothoracic humans, see Headless men. Bauplan of a malacostracan; the cephalothorax is the region including cephalon and thorax, marked in yellow. 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 difference between cephalic and thoracic?

The two words cephalic and thoracic have been put together to mean both head and thorax with the term cephalothorax. Cephalothorax is simply the region of the arthropod body that comprises the organs and systems of both head and thorax.