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15,000 to 20,000. Brain death is the permanent, irreversible, and complete loss of brain function, which may include cessation of involuntary activity necessary to sustain life. [1][2][3][4] It differs from persistent vegetative state, in which the person is alive and some autonomic functions remain. [5] It is also distinct from comas as long ...
Brainstem death is a clinical syndrome defined by the absence of reflexes with pathways through the brainstem – the "stalk" of the brain, which connects the spinal cord to the mid-brain, cerebellum and cerebral hemispheres – in a deeply comatose, ventilator -dependent patient. Identification of this state carries a very grave prognosis for ...
Lazarus sign. The Lazarus sign or Lazarus reflex is a reflex movement in brain-dead or brainstem failure patients, [1] which causes them to briefly raise their arms and drop them crossed on their chests (in a position similar to some Egyptian mummies). [2][3] The phenomenon is named after the Biblical figure Lazarus of Bethany, [4] whom Jesus ...
89.13. MeSH. D009460. [edit on Wikidata] A neurological examination is the assessment of sensory neuron and motor responses, especially reflexes, to determine whether the nervous system is impaired. This typically includes a physical examination and a review of the patient's medical history, [1] but not deeper investigation such as neuroimaging.
The risk of death from an intraparenchymal bleed in traumatic brain injury is especially high when the injury occurs in the brain stem. [48] Intraparenchymal bleeds within the medulla oblongata are almost always fatal, because they cause damage to cranial nerve X, the vagus nerve , which plays an important role in blood circulation and ...
An autopsy (also referred to as post-mortem examination, obduction, necropsy, or autopsia cadaverum) is a surgical procedure that consists of a thorough examination of a corpse by dissection to determine the cause, mode, and manner of death; or the exam may be performed to evaluate any disease or injury that may be present for research or educational purposes.
The stages that follow shortly after death are: Corneal opacity or "clouding". Pallor mortis, paleness which happens in the first 15–120 minutes after death. Livor mortis, or dependent lividity, a settling of the blood in the lower (dependent) portion of the body. Algor mortis, the reduction in body temperature following death.
D001538. The Bender Visual-Motor Gestalt Test (abbreviated as Bender-Gestalt test) is a psychological test used by mental health practitioners that assesses visual-motor functioning, developmental disorders, and neurological impairments in children ages 3 and older and adults. The test consists of nine index cards picturing different geometric ...