MEDICAL PHYSIOLOGY

Detailed explanation-1: -On the other hand, an organism that relies on the temperature of the environment around them to regulate their internal body temperature requires much less energy. This type of organism is called an ectotherm and commonly referred to as being cold-blooded.

Detailed explanation-2: -Ectotherms depend mainly on external heat sources, and their body temperature changes with the temperature of the environment. Animals exchange heat with their environment through radiation, conduction-sometimes aided by convection-and evaporation.

Detailed explanation-3: -ectotherm, any so-called cold-blooded animal-that is, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface. The ectotherms include the fishes, amphibians, reptiles, and invertebrates.

Detailed explanation-4: -Humans are endothermic organisms. This means that in contrast to the ectothermic (poikilothermic) animals such as fishes and reptiles, humans are less dependent on the external environmental temperature [6, 7].

Detailed explanation-5: -The word “ectotherm” refers to animals that generally have a body temperature comparable to their surrounding environment. They cannot internally regulate their body temperature. People often refer to them as “cold-blooded”, but this term tends to misdirect people more often than not.