Red Seal Cosmetology Practice Exam

Where in the skin are motor nerve fibers located?

1. In the epidermis

2. In the hair follicles

3. In the dermal-epidermal junction

4. In the subcutaneous tissue

The correct answer is: In the hair follicles

Motor nerve fibers are located in the hair follicles in the skin. These fibers are responsible for controlling the movement of the muscles found in the hair follicles, which is why they are located there. The epidermis, dermal-epidermal junction, and subcutaneous tissue do not contain motor nerve fibers. The epidermis is the outermost layer of skin and is mainly composed of dead skin cells. The dermal-epidermal junction is the area where the epidermis connects to the dermis, but it does not contain motor nerve fibers. The subcutaneous tissue is the deepest layer of skin and is mainly composed of fat cells and connective tissue, which do not contain motor nerve fibers either. Therefore, the only correct option is B, as this is the location in the skin where motor nerve fibers can be found.