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缢死即身体脱空悬吊,因自身重量造成的死亡;严格地说,不包括身体某些部分仍然着地者。用手或颈部环套结扎对颈部施加压力造成的勒死与缢死极似。无论缢死或勒死,颈部血管终因受压,引起大脑缺氧而导致最后死亡,幸存者则称为濒临缢死性损伤。病理生理学:外力作用于颈动脉体或迷走神经鞘可刺激副交感神经,颈动脉周围受外力可刺激交感神经。这两者均可直接导致心搏停止。体循环血管阻力和心搏出量反射性的改变,进一步使大脑灌注量减少。舌和会厌上移引起上呼吸道部分或完全阻塞,呕出物可进一步加重阻塞,自主神经张力改变影响呼吸系平滑肌,这
Death is the result of death due to its own weight; strictly speaking, it does not include those parts of the body that still land. A strangulation of the neck with a hand or neck loop can cause strangulation and strangulation. Regardless of death or strangulation, the end of the neck vessels are compressed, causing the brain to become oxygen-deficient, leading to the eventual death. Survivors claim the verge of nocturnal injury. Pathophysiology: external forces acting on the carotid body or vagus nerve sheath can stimulate the parasympathetic nerve, external carotid artery can stimulate the sympathetic. Both can lead directly to asystole. Changes in systemic vascular resistance and stroke reflex, further reducing brain perfusion. The tongue and epiglottis move up partly or completely obstruction of the upper respiratory tract, vomit can further aggravate the obstruction, autonomic nervous changes affect the respiratory smooth muscle, which