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Chokeholds
A chokehold, choke, stranglehold or, in Judo, shime-waza ( ja, 絞技, translation=constriction technique) is a general term for a grappling hold that critically reduces or prevents either air (choking)''The New Oxford Dictionary of English'' (1999). Oxford University press. . or blood ( strangling) from passing through the neck of an opponent. The restriction may be of one or both and depends on the hold used and the reaction of the victim. While the time it takes for the choke to render an opponent unconscious varies depending on the type of choke, the average across all has been recorded as 9 seconds. The lack of blood or air often leads to unconsciousness or even death if the hold is maintained. Chokeholds are used in martial arts, combat sports, self-defense, law enforcement and in military hand to hand combat applications. They are considered superior to brute-force manual strangling, which generally requires a large disparity in physical strength to be effective.Jones, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rear Naked Choke
The rear naked choke (RNC) is a chokehold in martial arts applied from an opponent's back. The word "naked" in this context suggests that, unlike other strangulation techniques found in jujutsu/judo, this hold does not require the use of a keikogi ("gi") or training uniform. The choke has two variations: in one version, the attacker's arm encircles the opponent's neck and then grabs their own biceps on the other arm (see below for details); in the second version, the attacker clasps their hands together instead after encircling the opponent's neck. Recent studies have shown that the rear-naked choke takes an average of 8.9 seconds to render an opponent unconscious regardless of the grip that is used. "Figure four" or "short" variation This variant is considered to be a "'' blood choke''" because it restricts blood flow to the brain via the carotid arteries. When applied correctly, it can cause temporary unconsciousness in a few seconds. The following is a description of this t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martial Arts
Martial arts are codified systems and traditions of combat practiced for a number of reasons such as self-defense; military and law enforcement applications; competition; physical, mental, and spiritual development; entertainment; and the preservation of a nation's intangible cultural heritage. Etymology According to Paul Bowman, the term ''martial arts'' was popularized by mainstream popular culture during the 1960s to 1970s, notably by Hong Kong martial arts films (most famously those of Bruce Lee) during the so-called " chopsocky" wave of the early 1970s. According to John Clements, the term '' martial arts'' itself is derived from an older Latin term meaning "arts of Mars", the Roman god of war, and was used to refer to the combat systems of Europe ( European martial arts) as early as the 1550s. The term martial science, or martial sciences, was commonly used to refer to the fighting arts of East Asia ( Asian martial arts) up until the 1970s, while the term ''Chinese box ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rear Naked Choke
The rear naked choke (RNC) is a chokehold in martial arts applied from an opponent's back. The word "naked" in this context suggests that, unlike other strangulation techniques found in jujutsu/judo, this hold does not require the use of a keikogi ("gi") or training uniform. The choke has two variations: in one version, the attacker's arm encircles the opponent's neck and then grabs their own biceps on the other arm (see below for details); in the second version, the attacker clasps their hands together instead after encircling the opponent's neck. Recent studies have shown that the rear-naked choke takes an average of 8.9 seconds to render an opponent unconscious regardless of the grip that is used. "Figure four" or "short" variation This variant is considered to be a "'' blood choke''" because it restricts blood flow to the brain via the carotid arteries. When applied correctly, it can cause temporary unconsciousness in a few seconds. The following is a description of this t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grappling Hold
A grappling hold, commonly referred to simply as a hold that in Japanese is referred to as ''katame-waza'' ( "grappling technique"), is any specific grappling, wrestling, judo, or other martial art grip that is applied to an opponent. Grappling holds are used principally to control the opponent and to advance in points or positioning. The holds may be categorized by their function, such as clinching, pinning, or submission, while others can be classified by their anatomical effect: chokehold, headlock, joint-lock, or compression lock. Multiple categories may be appropriate for some of these holds. Clinch hold A clinch hold (also known as a clinching hold) is a grappling hold that is used in clinch fighting with the purpose of controlling the opponent. In wrestling it is referred to as the tie-up. The use of a clinch hold results in the clinch. Clinch holds can be used to close in on the opponent, as a precursor to a takedown or throw, or to prevent the opponent from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martial Art
Martial arts are codified systems and traditions of combat practiced for a number of reasons such as self-defense; military and law enforcement applications; competition; physical, mental, and spiritual development; entertainment; and the preservation of a nation's intangible cultural heritage. Etymology According to Paul Bowman, the term ''martial arts'' was popularized by mainstream popular culture during the 1960s to 1970s, notably by Hong Kong martial arts films (most famously those of Bruce Lee) during the so-called " chopsocky" wave of the early 1970s. According to John Clements, the term ''martial arts'' itself is derived from an older Latin term meaning "arts of Mars", the Roman god of war, and was used to refer to the combat systems of Europe ( European martial arts) as early as the 1550s. The term martial science, or martial sciences, was commonly used to refer to the fighting arts of East Asia ( Asian martial arts) up until the 1970s, while the term ''Chinese boxing' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forensics
Forensic science, also known as criminalistics, is the application of science to criminal and civil laws, mainly—on the criminal side—during criminal investigation, as governed by the legal standards of admissible evidence and criminal procedure. Forensic science is a broad field that includes; DNA analysis, fingerprint analysis, blood stain pattern analysis, firearms examination and ballistics, tool mark analysis, serology, toxicology, hair and fiber analysis, entomology, questioned documents, anthropology, odontology, pathology, epidemiology, footwear and tire tread analysis, drug chemistry, paint and glass analysis, digital audio video and photo analysis. Forensic scientists collect, preserve, and analyze scientific evidence during the course of an investigation. While some forensic scientists travel to the scene of the crime to collect the evidence themselves, others occupy a laboratory role, performing analysis on objects brought to them by other individuals. Sti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertebrate Trachea
The trachea, also known as the windpipe, is a cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs. The trachea extends from the larynx and branches into the two primary bronchi. At the top of the trachea the cricoid cartilage attaches it to the larynx. The trachea is formed by a number of horseshoe-shaped rings, joined together vertically by overlying ligaments, and by the trachealis muscle at their ends. The epiglottis closes the opening to the larynx during swallowing. The trachea begins to form in the second month of embryo development, becoming longer and more fixed in its position over time. It is epithelium lined with column-shaped cells that have hair-like extensions called cilia, with scattered goblet cells that produce protective mucins. The trachea can be affected by inflammation or infection, usually as a result of a viral illness affecting other part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larynx
The larynx (), commonly called the voice box, is an organ in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration. The opening of larynx into pharynx known as the laryngeal inlet is about 4–5 centimeters in diameter. The larynx houses the vocal cords, and manipulates pitch and volume, which is essential for phonation. It is situated just below where the tract of the pharynx splits into the trachea and the esophagus. The word ʻlarynxʼ (plural ʻlaryngesʼ) comes from the Ancient Greek word ''lárunx'' ʻlarynx, gullet, throat.ʼ Structure The triangle-shaped larynx consists largely of cartilages that are attached to one another, and to surrounding structures, by muscles or by fibrous and elastic tissue components. The larynx is lined by a ciliated columnar epithelium except for the vocal folds. The cavity of the larynx extends from its triangle-shaped inlet, to the epiglottis, and to the circular outlet at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laryngopharynx
The pharynx (plural: pharynges) is the part of the throat behind the mouth and nasal cavity, and above the oesophagus and trachea (the tubes going down to the stomach and the lungs). It is found in vertebrates and invertebrates, though its structure varies across species. The pharynx carries food and air to the esophagus and larynx respectively. The flap of cartilage called the epiglottis stops food from entering the larynx. In humans, the pharynx is part of the digestive system and the conducting zone of the respiratory system. (The conducting zone—which also includes the nostrils of the nose, the larynx, trachea, bronchi, and bronchioles—filters, warms and moistens air and conducts it into the lungs). The human pharynx is conventionally divided into three sections: the nasopharynx, oropharynx, and laryngopharynx. It is also important in vocalization. In humans, two sets of pharyngeal muscles form the pharynx and determine the shape of its lumen. They are arranged as an in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NCIS (TV Series)
''NCIS'' is an American police procedural television series, revolving around a fictional team of special agents from the Naval Criminal Investigative Service combining elements of the military drama and police procedural genres. The concept and characters were initially introduced in two episodes of the CBS series '' JAG'' ( season eight episodes 20 and 21: " Ice Queen" and "Meltdown"). A spin-off from ''JAG'', the series premiered on September 23, 2003, on CBS. To date it has entered into the twentieth full season and has gone into broadcast syndication on the USA Network. Donald P. Bellisario and Don McGill are co-creators and executive producers of the premiere member of the ''NCIS'' franchise. , ''NCIS'' is the third-longest-running scripted, non-animated U.S. primetime TV series currently airing, surpassed only by '' Law & Order: Special Victims Unit'' (1999–present) and '' Law & Order'' (1990–2010; 2022–present); it is the 7th-longest-running scripted U.S. p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asphyxia
Asphyxia or asphyxiation is a condition of deficient supply of oxygen to the body which arises from abnormal breathing. Asphyxia causes generalized hypoxia, which affects primarily the tissues and organs. There are many circumstances that can induce asphyxia, all of which are characterized by the inability of a person to acquire sufficient oxygen through breathing for an extended period of time. Asphyxia can cause coma or death. In 2015, about 9.8 million cases of unintentional suffocation occurred which resulted in 35,600 deaths. The word asphyxia is from Ancient Greek "without" and , "squeeze" (throb of heart). Causes Situations that can cause asphyxia include but are not limited to: airway obstruction, the constriction or obstruction of airways, such as from asthma, laryngospasm, or simple blockage from the presence of foreign materials; from being in environments where oxygen is not readily accessible: such as underwater, in a low oxygen atmosphere, or in a vacuum; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Hunger
Shortness of breath (SOB), also medically known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity", and recommends evaluating dyspnea by assessing the intensity of its distinct sensations, the degree of distress and discomfort involved, and its burden or impact on the patient's activities of daily living. Distinct sensations include effort/work to breathe, chest tightness or pain, and "air hunger" (the feeling of not enough oxygen). The tripod position is often assumed to be a sign. Dyspnea is a normal symptom of heavy physical exertion but becomes pathological if it occurs in unexpected situations, when resting or during light exertion. In 85% of cases it is due to asthma, pneumonia, cardiac ischemia, interstitial lung disease, congestive heart failu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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