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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 ...
ExploreLearning is a Charlottesville, Virginia -based company which operates a large library of interactive online simulations for mathematics and science education in grades 3–12 called 'Gizmos'. ExploreLearning also makes Reflex, an online, game-based system for math fact memorization. [1] ExploreLearning is a business unit of Cambium ...
Early symptoms will be similar to the flu, and they can develop over a matter of hours or even days. Symptoms include: sudden high fever. stiff neck. severe headache. nausea or vomiting. confusion ...
Hoffmann's reflex. Hoffmann's reflex ( Hoffmann's sign, sometimes simply " Hoffmann's ", also finger flexor reflex) [1] is a neurological examination finding elicited by a reflex test which can help verify the presence or absence of issues arising from the corticospinal tract. It is named after neurologist Johann Hoffmann. [2]
The straight leg raise is a test that can be performed during a physical examination, with the leg being lifted actively by the patient or passively by the clinician. If the straight leg raise is done actively by the patient it is a test of functional leg strength, particularly the rectus femoris element of the quadriceps (checking both hip flexion and knee extension strength simultaneously).
Fencing response. The fencing response is an unnatural position of the arms following a concussion. Immediately after moderate forces have been applied to the brainstem, the forearms are held flexed or extended (typically into the air) for a period lasting up to several seconds after the impact. The fencing response is often observed during ...
The Babinski reflex — also called the plantar reflex — is a response to stimulation of the bottom of the foot. It can help doctors evaluate a neurological problem in people over age 2. If your ...
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