ANATOMY

Detailed explanation-1: -Responses to Stimuli An increase in temperature in an environment is a stimulus to the human body, but the act of sweating to cool the body down is a response, or reaction to the stimulus.

Detailed explanation-2: -Sweat production is stimulated through the release of acetylcholine from nonmyelinated class C sympathetic postganglionic fibers, which binds to muscarinic (subtype 3) receptors on the sweat gland (see Figure 2(c)) [9].

Detailed explanation-3: -The sweat leaves your skin through tiny holes called pores. When the sweat hits the air, the air makes it evaporate (this means it turns from a liquid to a vapor). As the sweat evaporates off your skin, you cool down.

Detailed explanation-4: -Eccrine sweat glands receive sympathetic innervation via cholinergic fibers that send impulses in response to changes in core body temperature.