Homeotherm internal temperature from "summary" of Anatomy and Physiology by Frederic Martini,William C. Ober,Claire W. Garrison
Homeotherms, such as humans, are able to maintain a relatively constant internal body temperature, regardless of external environmental conditions. This temperature is regulated by a combination of hormones, metabolic processes and behavior.- Homeotherms are animals who maintain a constant internal body temperature, often times higher than the environment. This helps them to remain active regardless of environmental conditions.
- The ability of an organism to thermoregulate is generally linked to its metabolic rate and size. Smaller creatures require more frequent monitoring of their temperatures whereas larger homeotherms require less precise regulating.
- Reptiles, many birds, and mammals all utilize a unique countercurrent heat exchange system which helps them to maintain optimal core temperatures.
- Research has shown that stress hormones such as glucocorticoids can greatly affect how efficiently an organism is able to maintain its core temperature.
- A variety of strategies may be employed by animals when challenged with extreme weather. These may include migrating, thermal preference behaviors, and periods of dormancy or decreased activity.
