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Neurology. Congenital insensitivity to pain ( CIP ), also known as congenital analgesia, is one or more extraordinarily rare conditions in which a person cannot feel (and has never felt) physical pain. [1] The conditions described here are separate from the HSAN group of disorders, which have more specific signs and cause.
t. e. In physiology, a stimulus [1] is a detectable change in the physical or chemical structure of an organism's internal or external environment. The ability of an organism or organ to detect external stimuli, so that an appropriate reaction can be made, is called sensitivity ( excitability ). [2] Sensory receptors can receive information ...
Fight-or-flight response. A dog and a cat expressing the fight (top) and flight (bottom) response simultaneously. The fight-or-flight or the fight-flight-freeze-or-fawn [1] (also called hyperarousal or the acute stress response) is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival. [2]
D009619. Anatomical terminology. [ edit on Wikidata] A nociceptor (from Latin nocere 'to harm or hurt'; lit. 'pain receptor') is a sensory neuron that responds to damaging or potentially damaging stimuli by sending "possible threat" signals [1] [2] [3] to the spinal cord and the brain. The brain creates the sensation of pain to direct attention ...
Reactive lymphocyte. Reactive lymphocyte surrounded by red blood cells. In immunology, reactive lymphocytes, variant lymphocytes, atypical lymphocytes, Downey cells or Türk cells are cytotoxic (CD8 +) lymphocytes that become large as a result of antigen stimulation. Typically, they can be more than 30 μm in diameter with varying size and shape.
Medication. Analgesic. Pain is a distressing feeling often caused by intense or damaging stimuli. The International Association for the Study of Pain defines pain as "an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage."
Pain stimulus is a technique used by medical personnel for assessing the consciousness level of a person who is not responding to normal interaction, voice commands or gentle physical stimuli (such as shaking of the shoulders). [1] It forms one part of a number of neurological assessments, including the first aid based AVPU scale and the more ...
Periosteal reaction. Periosteal reaction on a healing supracondylar fracture. Specialty. Orthopedics. A periosteal reaction is the formation of new bone in response to injury or other stimuli of the periosteum surrounding the bone. [1] It is most often identified on X-ray films of the bones. [citation needed]