ANATOMY

Detailed explanation-1: -Another example of homeostasis in dogs is temperature regulation. Since dogs do not have the ability to sweat like humans, they will pant as a way to cool off. This physical behavior is their way for regulating their internal temperature, which keeps them from overheating.

Detailed explanation-2: -Panting is a controlled increase in respiratory frequency accompanied by a decrease in tidal volume, the purpose of which is to increase ventilation of the upper respiratory tract, preserve alveolar ventilation, and thereby elevate evaporative heat loss.

Detailed explanation-3: -In hot environments, body water may be depleted because of sweating or panting-two major homeostatic cooling mechanisms. Evaporation of fluid from the skin surface in the case of sweating, or from moist membranes of the respiratory tract during panting, requires energy in the form of heat from the body.

Detailed explanation-4: -Panting is the major avenue of evaporative cooling in dogs exposed to heat and/or exercise. We found modulation of evaporation was achieved by varying the paths of airflow during inhalation and exhalation.