HISTOLOGY
INTEGUMENTARY SYSTEM SKIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
How does the skin cool the body?
|
|
Capillaries expand, Sweat glands close.
|
|
|
Capillaries expand, respiration increases.
|
|
|
Capillaries contract, Sweat glands open
|
|
|
Capillaries expand, Sweat glands open
|
|
|
Capillaries contract, Sweat glands open
|
Explanation:
Detailed explanation-1: -Sweating cools the body when it becomes warm. When the body temperature rises, such as when exercising on a hot day, the dermal blood vessels dilate, and the sweat glands begin to secrete more sweat. The evaporation of the sweat from the surface of the skin cools the body by dissipating heat.
Detailed explanation-2: -Eccrine sweat glands occur over most of the body and open directly onto the skin’s surface.
Detailed explanation-3: -When heat activates sweat glands, these glands bring that water, along with the body’s salt, to the surface of the skin as sweat. Once on the surface, the water evaporates. Water evaporating from the skin cools the body, keeping its temperature in a healthy range.
There is 1 question to complete.