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. This means that the development of the thorax must
Prothorax | anatomy | Britannica
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 the body between the neck and the abdomen.
Prothorax - an overview | ScienceDirect Topics
The prothorax is the first segment behind the head and has a pair of legs. The top of the prothorax (pronotum) in many insects has characteristic markings that help distinguish between species. In some cases, the lateral margins of the prothorax have such characteristics.
Thorax – ENT 425 – General Entomology - North Carolina State …
The second (middle) tagma of an insect’s body is called the thorax. This region is almost exclusively adapted for locomotion — it contains three pairs of walking legs and, in many adult insects, one or two pairs of wings. Structurally, the thorax is composed of three body segments: prothorax, mesothorax, and metathorax.
Insect - Thorax, Wings, Legs | Britannica
Sep 13, 2024 · The 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).
The insect thorax is divided into three parts: the prothorax (pro=first), mesothorax (meso=middle), and metathorax (meta=last). Each segment consists of hardened plates, or sclerites.
Prothorax Definition & Meaning - Merriam-Webster
The meaning of PROTHORAX is the anterior segment of the thorax of an insect.
prothorax - BugGuide.Net
prothorax 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 THORAX. The thorax is composed of three segments, the pro-, meso- and metathorax.In almost all insects each segment bears a pair of legs and in most adults both the meso- and metathorax carry a pair of wings. Where the legs are wanting, their absence is secondary.
Prothorax Definition and Examples - Biology Online Dictionary
May 29, 2023 · prothorax. (Science: zoology) The first or anterior segment of the thorax in insects. Origin: Pref. Pro- – thorax.
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