This video we're going to talk about the integumentary system's second method of thermoregulation, which is sweating. Sweat or perspiration is a water-based solution secreted onto the surface of the skin by sweat glands when the body gets too hot. The body is actually cooled down when the sweat evaporates off the surface of the skin. Notice in the diagram of the integumentary system below, you can see these sweat glands throughout the dermis. These sweat glands are exocrine glands because they secrete the sweat onto the surface of the skin.
Notice here that these little bubbles that you see are the sweat puddles themselves. The red lines coming off of the sweat puddles represent the evaporation of the sweat. It's when the sweat evaporates off the surface of the skin that the body is actually cooled down. Later in our course, we're going to talk more about sweat and sweat glands. But for now, this concludes our video on sweating, and we'll be able to get some practice applying these concepts moving forward.
So I'll see you all in our next video.