Prothorax - Wikipedia
WebProthorax. Prothorax of a beetle. The prothorax is the foremost of the three segments in the thorax of an insect, and bears the first pair of legs. Its principal sclerites (exoskeletal plates) are the pronotum ( dorsal ), the prosternum ( ventral ), and the propleuron ( …
Thorax - Wikipedia
WebIn most insects, the thorax itself is composed of three segments; the prothorax, the mesothorax, and the metathorax. In extant insects, the prothorax never has wings, though legs are always present in adults; wings (when present) are restricted to at least the mesothorax, and typically also the metathorax, though the wings may be reduced or ...
Prothorax | anatomy | Britannica
Webthoracic squeeze. prothorax. gula. thorax, the part of an animal ’s body between its head and its midsection. In vertebrates ( fishes, amphibians, reptiles, birds, and mammals ), the thorax is the chest, with the chest being that part of …
Prothorax - an overview | ScienceDirect Topics
WebThe thorax is comprised of three fused segments; the prothorax, mesothorax, and metathorax (Figure 2.8 ). The prothorax and metathorax are very reduced relative to the mesothorax, which has been greatly enlarged to accommodate the …
Thorax (arthropod anatomy) - Wikipedia
WebThe thorax is the midsection ( tagma) of the hexapod body ( insects and entognathans ). It holds the head, legs, wings and abdomen. It is also called mesosoma or cephalothorax in other arthropods. It is formed by the prothorax, mesothorax and metathorax and comprises the scutellum; the cervix, a membrane that separates the head from the thorax ...
Prothorax Definition & Meaning - Merriam-Webster
WebThe meaning of PROTHORAX is the anterior segment of the thorax of an insect.
WebThe anterior segment is called the prothorax, the middle segment is called the mesothorax, and the posterior segment is called the. metathorax. The thorax must have evolved very early in the phylogenetic history of the insects. It is easily differentiated from the abdomen in both the apterygota and the pterygota.
Insect - Thorax, Wings, Legs | Britannica
WebThe insect thorax consists of three segments (called the prothorax, mesothorax, and metathorax), which may be fused but are usually recognizable. Each segment has four groups of hard plates (sclerites); the groups are the notum (upper), the pleura (sides), and the sternum (underside).
prothorax - BugGuide.Net
Webprothorax noun - the foremost of the three segments in the thorax of an insect, and bears the first pair of legs. Its principal sclerites are the pronotum (dorsal), the prosternum (ventral), and the propleuron (lateral) on each side. The prothorax never bears wings in extant insects, though some fossil groups possessed wing-like projections.
Prothorax Definition and Examples - Biology Online Dictionary
WebMay 29, 2023 · prothorax. (Science: zoology) The first or anterior segment of the thorax in insects. Origin: Pref. Pro- – thorax. Last updated on May 29th, 2023.
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