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Temperature RegulationAka: Thermoregulation
- Physiology
- Hypothalamus controls thermoregulation
- Parasympathetic nervous system controls sweating
- Sympathetic nervous system controls skin blood flow
- Vasodilation results in heat dissipation
- Temperature variation
- Core temperature rises 1 C per 30 C Ambient temperature
- Core temp. rise 0.6 C, raises basal metabolic rate 10%
- Thermal maximum (temp above which cell death occurs)
- 42 C (107.6 F) for 45 minutes to 8 hours
- Heat Dissipation Mechanisms
- Sweat evaporation (primary mechanism at >68F or 20C)
- Optimally dissipates 600 kcal/hour
- Sweat loss maximum 3 Liters/hour
- Endurance athletes lose up to 1.5 Liters/hour
- Conduction (e.g. cold packs applied to skin)
- Convection (Air or wind flows over skin)
- Radiation (Infrared dissipation)
- Sweat evaporation (primary mechanism at >68F or 20C)
- References
Physiologic Thermoregulation (C0005905) | |
|---|---|
| Definition (MSH) | The processes of heating and cooling that an organism uses to control its temperature. |
| Definition (CSP) | processes of heating and cooling that an organism uses to control its temperature. |
| Definition (GO) | The processes by which an organism modulates its internal body temperature. [GOC:jl] |
| Concepts | Organism Function (T040) |
| MSH | D001833 |
| English | BODY TEMPERATURE REG, Body Temperature Regulation, Body Temperature Regulations, Body Thermoregulation, Physiologic Thermoregulation, REG BODY TEMPERATURE, regulation of body temperature, TEMPERATURE REG BODY, THERMOREG, Thermoregulation, Thermoregulations |
| Spanish | termorregulacion |
| Parent Concepts | biological regulation (C0678661), Body Temperature (C0005903), Homeostasis (C0019868), multicellular organismal process (C1327400), homeostatic process (C1819698), Function (C0542341), Ambiguous concept (C1274012) |
| Sources | AOD, CSP, GO, MSH, MTH, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System) |
