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 all the tissues and organs, some more rapidly than others. 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.
Hanging is killing a person by suspending them from the neck with a noose or ligature. Hanging has been a common method of capital punishment since the Middle Ages, and has been the primary execution method in numerous countries and regions. The first known account of execution by hanging is in Homer's Odyssey. Hanging is also a method of suicide.
Choking, also known as foreign body airway obstruction (FBAO), is a phenomenon that occurs when breathing is impeded by a blockage inside of the respiratory tract. An obstruction that prevents oxygen from entering the lungs results in oxygen deprivation. Although oxygen stored in the blood and lungs can keep a person alive for several minutes after breathing stops, choking often leads to death.
The brachiocephalic artery, brachiocephalic trunk, or innominate artery is an artery of the mediastinum that supplies blood to the right arm, head, and neck.
A garrote or garrote vil is a weapon and a method of capital punishment. It consists of a handheld ligature of chain, rope, scarf, wire or fishing line, used to strangle a person.
Erotic asphyxiation is the intentional restriction of oxygen to the brain for the purposes of sexual arousal. With a partner, the act often involves strangulation. The term autoerotic asphyxiation is used when the act is done by a person to themself. Colloquially, a person engaging in the activity is sometimes called a gasper. Erotic asphyxiation can lead to accidental death due to asphyxia.
In human anatomy, the carotid sinus is a dilated area at the base of the internal carotid artery just superior to the bifurcation of the internal carotid and external carotid at the level of the superior border of thyroid cartilage. The carotid sinus extends from the bifurcation to the "true" internal carotid artery. The carotid sinus is sensitive to pressure changes in the arterial blood at this level. It is the major baroreception site in humans and most mammals.
Kappo are healing techniques that often involve stimulation of specific acupuncture points. Kappo is commonly used in martial arts such as Danzan Ryu and Judo. Kappo contains two kanji: katsu and ho.
A chokehold, choke, stranglehold or, in Judo, shime-waza is a general term for a grappling hold that critically reduces or prevents either air (choking) 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 choking game, or fainting game is the act of intentionally cutting off oxygen to the brain with the goal of inducing temporary loss of consciousness and euphoria. A related internet challenge, the blackout challenge, encourages the use of the choking game online.
The rear naked choke (RNC), also known as "hadaka jime" in Judo and "lion killer choke " in BJJ, 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.
In anatomy, the left and right common carotid arteries (carotids) are arteries that supply the head and neck with oxygenated blood; they divide in the neck to form the external and internal carotid arteries.
The guillotine choke, also known as Mae Hadaka Jime in judo, is a chokehold in martial arts applied from in front of the opponent, often on the ground but can also be done while standing. The choke involves using the arms to encircle the opponent's neck that bears a resemblance to the blade of a guillotine.
A carotid-cavernous fistula results from an abnormal communication between the arterial and venous systems within the cavernous sinus in the skull. It is a type of arteriovenous fistula. As arterial blood under high pressure enters the cavernous sinus, the normal venous return to the cavernous sinus is impeded and this causes engorgement of the draining veins, manifesting most dramatically as a sudden engorgement and redness of the eye of the same side.
A grappling hold, commonly referred to simply as a hold that in Japanese is referred to as katame-waza, 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.
Carotid artery dissection is a serious condition in which a tear forms in one of the two main carotid arteries in the neck, allowing blood to enter the artery wall and separate its layers (*dissection*). This separation can lead to the formation of a blood clot, narrowing of the artery, and restricted blood flow to the brain, potentially resulting in stroke. Symptoms vary depending on the extent and location of the dissection and may include a sudden, severe headache, neck or facial pain, vision changes, a drooping eyelid, and stroke-like symptoms such as weakness or numbness on one side of the body, difficulty speaking, or loss of coordination.
Nami Jūji-jime (並十字絞) is one of the twelve constriction techniques of Kodokan Judo in the Shime-waza list. Also known as Namijujijime, Danzan Ryu includes this technique in the Shimete list under the name Gyakujujijime.
Kata Jūji-jime (片十字絞) is a chokehold in judo. It is one of the twelve constriction techniques of Kodokan Judo in the
A choke-out is a hand-to-hand combat tactic involving the use of a chokehold to cause syncope, or temporary loss of consciousness, at which point the choke is released. Common chokeholds in grappling used to accomplish a choke-out include the rear naked choke, arm triangle, triangle choke, and the guillotine.
Strangulation in the context of domestic violence is a potentially lethal form of assault. Unconsciousness may occur within seconds of strangulation and death within minutes. Strangulation can be difficult to detect and until recently was often not treated as a serious crime. However, in many jurisdictions, strangulation is now a specific criminal offense, or an aggravating factor in assault cases.
