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Some possible causes of Shapiro syndrome include hypothalamic dysfunction, neurotransmitter abnormalities, genetic variation, and endogenous high melatonin. However, the exact cause of Shapiro syndrome is unknown. Hypothalamus is a structure deep within the brain that connects the endocrine and nervous system together. The hypothalamus keeps ...
Simplified control circuit of human thermoregulation. [8]The core temperature of a human is regulated and stabilized primarily by the hypothalamus, a region of the brain linking the endocrine system to the nervous system, [9] and more specifically by the anterior hypothalamic nucleus and the adjacent preoptic area regions of the hypothalamus.
Hypothalamic disease is a disorder presenting primarily in the hypothalamus, which may be caused by damage resulting from malnutrition, including anorexia and bulimia eating disorders, [1] [2] genetic disorders, radiation, surgery, head trauma, [3] lesion, [1] tumour or other physical injury to the hypothalamus. The hypothalamus is the control ...
The hypothalamus is located below the thalamus and is part of the limbic system. [1] It forms the basal part of the diencephalon. All vertebrate brains contain a hypothalamus. [2] In humans, it is about the size of an almond. [3] The hypothalamus has the function of regulating certain metabolic processes and other activities of the autonomic ...
Chills occur when the hypothalamic temperature set point is suddenly elevated. [2] This could occur due to several causes, including tissue destruction, pyrogenic substances, or dehydration. [2] Due to the body temperature being below the new set point, body mechanisms of raising body temperature, including vasoconstriction, and shivering ensue ...
[13] [14] Non-infectious causes include vasculitis, deep vein thrombosis, connective tissue disease, side effects of medication or vaccination, and cancer. [ 13 ] [ 15 ] It differs from hyperthermia , in that hyperthermia is an increase in body temperature over the temperature set point, due to either too much heat production or not enough heat ...
One form of homeostasis is thermoregulation. Body temperature varies in every individual, but the average internal temperature is 37.0 °C (98.6 °F). [1] Sufficient stress from extreme external temperature may cause injury or death if it exceeds the ability of the body to thermoregulate.
Heat exhaustion is a precursor to heat stroke, a severe form of heat-related illness. Heat stroke is more likely than heat exhaustion to cause palor, hot and dry skin, syncope, and dysfunction of the central nervous system (e.g., altered mental status, loss of spatial awareness, loss of bodily movement control, seizures, etc.).