Question

eccrine sweat glands are found in almost every region of the skin and produce a secretion of water and sodium chloride. eccrine sweat is delivered via a duct to the surface of the skin and is used to lower the bodys temperature through evaporative cooling. eccrine sweat glands have other functions as well that help to maintain homeostasis. what is another function of these glands?
a they produce sebum which helps maintain the elasticity of our skin.
b they produce a waxy secretion known as cerumen that acts as a lubricant.
c they excrete waste products out of the body such as lactic acid and ammonia.
d these glands in the epidermis produce the pigment melanin, which absorbs uv light before it can pass through the skin.

Explanation:

• Option A: Sebum is produced by sebaceous glands, not eccrine sweat glands.
• Option B: Cerumen (ear - wax) is produced by ceruminous glands (a type of modified sweat gland in the ear), not the general eccrine sweat glands.
• Option C: Eccrine sweat glands do excrete waste products like lactic acid and ammonia along with water and sodium chloride. This is an additional function for maintaining homeostasis.
• Option D: Melanin is produced by melanocytes in the epidermis, not by eccrine sweat glands.

Answer:

C. They excrete waste products out of the body such as lactic acid and ammonia.