In humans and other hominids, the thorax is the chest region of the body between the neck and the abdomen, along with its internal organs and other contents. The middle division of the body of an insect, to which the wings and legs are attached. Frontal part of an animal's body, between its head and abdomen, This article is about the anatomy concept. See thorax in the Oxford Advanced American Dictionary See thorax in the Oxford Learner's Dictionary of Academic English The thorax is the midsection (tagma) of the insect body. 11 & 12 are known as floating ribs because they have no anterior attachment point in particular the cartilage attached to the sternum, as 1-7 are, and therefore are termed "floating". The thorax consists of three segments called the pro-, meso-, and metathorax. It is important that these patients and their caregivers have a good understanding of heart attack symptoms. the corresponding part in other vertebrates. What does insect mean? Injury to the chest (also referred to as chest trauma, thoracic injury, or thoracic trauma) results in up to ¼ of all deaths due to trauma in the United States.[5]. These conditions can be hereditary or caused by birth defects or trauma. The inner organs are protected by the rib cage and the sternum. The thorax is one of the three main body parts of an insect. noun plural thoraxes or thoraces (ˈθɔːrəˌsiːz, θɔːˈreɪsiːz) the part of the human body enclosed by the ribs. Cf. Different people feel pains differently for the same condition. The prothoracic shield is located on T1, the first segment. thorax n 1. the middle region of the body of an arthropod between the head and the abdomen 2. the part of the human body between the neck and the diaphragm or the corresponding part in other vertebrates [syn: chest, pectus] 3. part of an insect's body that bears the wings and legs In the Apocritan Hymenoptera, the first abdominal segment is fused to the metathorax, where it forms a structure known as the propodeum. Synonyms, Antonyms, Derived Terms, Anagrams and senses of thorax. https://en.wikipedia.org/w/index.php?title=Thorax_(arthropod_anatomy)&oldid=992388338, Pages using multiple image with auto scaled images, Creative Commons Attribution-ShareAlike License, This page was last edited on 5 December 2020, at 00:40. Insects are distinguished from other arthropods by their body, which is divided into three major regions: (1) the head, which bears the mouthparts, eyes, and a pair of antennae, (2) the three-segmented thorax, which usually has three pairs of legs (hence “Hexapoda”) in adults and usually one or two pairs of wings, and (3) the many-segmented abdomen, which contains the digestive, excretory, and reproductive organs. The nipple in the male is situated in front of the fourth rib or a little below; vertically it lies a little external to a line drawn down from the middle of the clavicle; in the female it is not so constant. Whereas ribs 8-10 are termed false ribs as their costal cartilage articulates with the costal cartilage of the rib above. The thorax is the second section of the caterpillar body. The shape of the chest does not correspond to that part of the thoracic skeleton that encloses the heart and lungs. arachnid. noun. In most insects, the thorax itself is composed of three segments; the prothorax, the mesothorax, and the metathorax. The blockage may be caused by something inside the bronchus, such as a plug of mucus, a tumour, or an inhaled foreign object such as a coin, piece of food, or a toy. The ribs of the thorax are numbered in ascending order from 1-12. the middle of three distinct divisions in an insect, crustacean or arachnid body ¹ 2. Chest (thorax) CT scans of the chest can look for problems with the heart, lungs, esophagus, the aorta, or even many of the tissues in the chest. Chest wall pain can be experienced after an increase in activity. The trilobite body is divided into three major sections, a cephalon with eyes, mouthparts and sensory organs such as antennae, a thorax of multiple similar segments (that in some species allowed them to roll up into a ball), and a pygidium, or tail section. Not all pain that is felt is associated with the heart, but it should not be taken lightly either. Noun. It is the area where the wings and legs attach in insects, or an area of multiple articulating plates in trilobites. [6] While cardiac issues cause feelings of sudden pressure in the chest or a crushing pain in the back, neck, and arms, pain that is felt due to noncardiac issues gives a burning feeling along the digestive tract or pain when deep breaths are attempted. In the middle line the suprasternal notch is seen above, while about three fingers' breadth below it a transverse ridge can be felt, which is known as the sternal angle and this marks the junction between the manubrium and body of the sternum. The heart and the lungs reside in the thoracic cavity, as well as many blood vessels. the part of an insect ’s body between its head and its abdomen —thoracic /θɔːˈræsɪk/ adjective Examples from the Corpus thorax • They were beautiful creatures with red legs, black head and thorax, and black white-ringed antennae. Most insects have two pairs of wings, but in some species one of the pairs is adapted to be used for another purpose. Level with this line the second ribs join the sternum, and when these are found the lower ribs can often be counted. the middle section of an insect’s body, to which the legs and wings are attached Topics Insects, worms, etc. Shingles is another viral infection that can give symptoms of chest or rib pain before a rash develops. Each thoracic segment in an insect is further subdivided into various parts, the most significant of which are the dorsal portion (the notum), the lateral portion (the pleuron; one on each side), and the ventral portion (the sternum). The female nipple is surrounded for half an inch by a more or less pigmented disc, the areola. The pain can trigger cardiac issues as well. In mammals, the thorax is the region of the body formed by the sternum, the thoracic vertebrae, and the ribs. It holds the head, legs, wings and abdomen. Insects have wings, and many types can fly. Showing page 1. The head is made of 5-7 fused segments and bears the eyes, antennae, and mouthparts.. Insects any small arthropod, such as a spider, tick, or centipede, having a superficial, general similarity to the insects. | Bedeutung, Aussprache, Übersetzungen und Beispiele The middle of three distinct divisions in an insect, crustacean or arachnid body. Accordingly, in these insects, the functional thorax is composed of four segments, and is therefore typically called the mesosoma to distinguish it from the "thorax" of other insects. Entomologists, scientists who study insects, might also add that insects have a … Menu. thorax meaning. Sweating, shortness of breath, lightheadedness, and irregular heartbeat may also be experienced. Insects have three major body regions: head, thorax, and abdomen (see Insect Body Regions, right).. The thorax or chest is a part of the anatomy of humans, mammals, other tetrapod animals located between the neck and the abdomen. 2 : the middle section of an insect's body Persons who add exercise to their daily routine generally feel this type of pain at the beginning. Meaning and Definition of thorax. the middle region of the body of an arthropod between the head and the abdomen thorax, chest, pectus (noun) the part of the human torso between the neck and … Clearly visible thorax of an artistic gymnast. It consists of three segments, known as T1, T2, and T3. insect definition: 1. a type of very small animal with six legs, a body divided into three parts and usually two pairs…. English monolingual. The ganglion is made up of cell bodies and nerve fibers. Images. insect - WordReference English dictionary, questions, discussion and forums. It contains organs including the heart, lungs, and thymus gland, as well as muscles and various other internal structures. : the middle of the three segments of the thorax of an insect — see insect illustration First Known Use of mesothorax circa 1826, in the meaning defined above History and Etymology for mesothorax Medical Definition of thorax 1 : the part of the mammalian body that is situated between the neck and the abdomen and supported by the ribs, costal cartilages, and sternum also : thoracic cavity 2 : the middle of the three chief divisions of the body of an insect also … thorax [thor´aks] the part of the body between the neck and abdomen; it is separated from the abdomen by the diaphragm. (Redirected from Thorax (insect anatomy)) The thorax is the midsection (tagma) of the insect body. In the worker ant, the abdomen consists of the. Thorax 1) Animal anatomy 2) Area between neck and abdomen 3) Body part 4) Body section 5) Chest 6) Chest area 7) English-language journal 8) Insect body part 9) Insect midsection 10) Insect section 11) Middle of an insect 12) Middle section of an insect 13) Neck-abdomen connection 14) Where the heart is thorax translation in English-Tagalog dictionary. Found 17 sentences matching phrase "thorax".Found in 3 ms. An insect's thorax is the central part of its body to which the legs and wings are attached. It can also includes parts of the upper abdomen and can pick up abnormalities of the liver, spleen and stomach. https://en.wikipedia.org/w/index.php?title=Thorax&oldid=1008013486, Short description is different from Wikidata, Wikipedia articles with BALaT identifiers, Creative Commons Attribution-ShareAlike License, This page was last edited on 21 February 2021, at 03:01. If it is untreated, blood flow can be interrupted and cause a drop in blood pressure known as tension pneumothorax. In some insect pupae, like the mosquitoes', the head and thorax can be fused in a cephalothorax. The anatomy of the chest can also be described through the use of anatomical landmarks. In some insects, each of these parts is composed of one to several independent exoskeletal plates with membrane between them (called sclerites), though in many cases the sclerites are fused to various degrees. External structures are the skin and nipples. It is possible for smaller cases to clear up on their own. If this condition is present in the body, discomfort will be felt in the chest that is similar to a heavy weight placed on the body. The middle section of an insect’s body is called the thorax. It consists of the ribs and sternum. In insects, crustaceans, and the extinct trilobites, the thorax is one of the three main divisions of the creature's body, each of which is in turn composed of multiple segments. In most flying insects, the thorax allows for the use of asynchronous muscles. Direct lung injuries, such as pulmonary contusions (see the image below), are frequently associated with major chest trauma and may impair ventilation by a similar mechanism. 1 : the part of an animal's body between the neck and the waist. The thorax contains the locomotive musculature and is also well supplied with trachae to supply the muscles with oxygen. It can occur without a known cause or as the result of a lung disease or acute lung injury. In insects, crustaceans, and the extinct trilobites, the thorax is one of the three main divisions of the creature's body, each of which is in turn composed of multiple segments. If a heart attack occurs, the bulk of the damage is caused during the first six hours, so getting the proper treatment as quickly as possible is important. [7] It is possible for something outside of the bronchus to cause the blockage. Derived terms. Dictionary ! For other uses, see, "Chest" redirects here. The six legs and two pairs of wings (if present) are attached to the thorax. Another non cardiac cause of chest pain is atelectasis. All the breadth of the shoulders is due to the shoulder girdle, and contains the axillae and the heads of the humeri. The corresponding area in an animal can also be referred to as the chest. Chest pain may be a symptom of myocardial infarctions ('heart attack'). The thorax is the middle segment, behind the head and before the abdomen. Click here to scroll through the image stacks. Some people, especially those who are elderly or have diabetes, may not have typical chest pain but may have many of the other symptoms of a heart attack. Only a patient truly knows if the symptoms are mild or serious. This is where the insect’s legs and wings attach to … ... flies, wasps, and mosquitoes, characterized in the adult state by division of the body into head, thorax, and abdomen, by three pairs of legs on the thorax, and, usually, by two pairs of membranous wings. It is mostly protected and supported by the rib cage, spine, and shoulder girdle. At the lower part of the sternum, where the seventh or last true ribs join it, the ensiform cartilage begins, and above this there is often a depression known as the pit of the stomach. Just like with a heart attack, not all chest pain is suffered because of a condition involving the heart. The bones of the thorax, called the "thoracic skeleton" is a component of the axial skeleton. All Free. Any condition that lowers the ability to either breathe deeply or to cough is considered a chest disease or condition. Pain can also be experienced in persons who have an upper respiratory infection. Thorax Definition: Your thorax is the part of your body between your neck and your waist . This virus is also accompanied by a fever and cough. For the furniture used for storage, see, X-ray image of the chest showing the internal anatomy of the. Sepsis due to leakage of alimentary tract contents, as in esophageal perforations, also must be considered. Symptoms can be different depending on the cause of the pain. Each of the segments of the thorax bears one pair of legs and if … The anterior thoracic wall, the airways and the pulmonary vessels anterior to the root of the lung have been digitally removed in order to visualize the different levels of the pulmonary circulation. It extends from the neck to the diaphragm, and does not include the upper limbs. It is formed by the prothorax, mesothorax and metathorax and comprises the scutellum; the cervix, a membrane that separates the head from the thorax; and the pleuron, a lateral sclerite of the thorax. Different types of diseases or conditions that affect the chest include pleurisy, flail chest, atelectasis, and the most common condition, chest pain. the part of an insect's body between the head and abdomen, which bears the wings and legs. The major pathophysiologies encountered in blunt chest trauma involve derangements in the flow of air, blood, or both in combination. The thorax contains three pairs of true legs with hooks and a dorsal plate called the prothoracic shield. [8] The size of the pneumothorax changes as air or gas builds up, so a medical procedure can release the pressure with a needle. The word thorax comes from the Greek θώραξ thorax "breastplate, cuirass, corslet"[3] via Latin: thorax.[4]. A little below it the lower limit of the great pectoral muscle is seen running upward and outward to the axilla; in the female this is obscured by the breast, which extends from the second to the sixth rib vertically and from the edge of the sternum to the mid-axillary line laterally. What is thorax? thorax definition: 1. in humans and animals, the middle part of the body below the neck and above the waist 2. in…. thorax - part of an insect's body that bears the wings and legs insect - small air-breathing arthropod prothorax - the anterior part of an insect's thorax; bears the first pair of legs Symptoms of this condition are often felt only on one side of the lung or as a shortness of breath. [3]. Appendages used for movement are attached to the thorax. c2 Word Origin late Middle English: via Latin from Greek thōrax . The cuticular organ that helps to perceive stimuli is called the sensilla. In the human body, the region of the thorax between the neck and diaphragm in the front of the body is called the chest. Related terms for 'thorax': abdomen, back, belly, belly button, body, chest, flank, front, girth, heart, hip, hollow, knee, lap, loins, middle Chest pain can be the result of multiple issues, including respiratory problems, digestive issues, and musculoskeletal complications. any small air-breathing arthropod of the class Insecta, having a body divided into head, thorax, and abdomen, three pairs of legs, and (in most species) two pairs of wings. The head is connected to the thorax by the occipital foramen, enabling a wide range of motion for the head. Pneumothorax is the condition where air or gas can build up in the pleural space. Its walls are formed by the 12 pairs of ribs, attached to the sides of the spine and curving toward the front. Arteries and veins are also contained – (aorta, superior vena cava, inferior vena cava and the pulmonary artery); bones (the shoulder socket containing the upper part of the humerus, the scapula, sternum, thoracic portion of the spine, collarbone, and the rib cage and floating ribs). The apex of a normal heart is in the fifth left intercostal space, three and a half inches from the mid-line. This insect anatomy–related article is a stub. [1][2] In insects, crustaceans, and the extinct trilobites, the thorax is one of the three main divisions of the creature's body, each of which is in turn composed of multiple segments. It is also called mesosoma or … Insects’ wings › Thorax. Injuries to the rib cage or sternum is also a common cause of chest pain. In dragonflies and damselflies the mesothorax and metathorax are fused together to form the synthorax.[1][2]. ... (head, thorax, and abdomen), and having three pairs of legs and usually two pairs of wings. It is also called mesosoma or cephalothorax in other arthropods.
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