Michigan Esthetician State Board Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Sebaceous glands are specialized structures located in the dermis that are responsible for secreting an oily substance known as sebum. This sebum plays a crucial role in maintaining skin health by keeping it moisturized, providing a barrier against bacteria and environmental elements, and preventing excessive water loss. Sebaceous glands are usually associated with hair follicles, where the sebum travels up the follicle and onto the skin surface.

The other glands mentioned in the choices serve different functions. Sweat glands are primarily involved in thermoregulation and excreting waste through perspiration. Apocrine glands, a type of sweat gland, are associated with hair follicles in areas such as the armpits and groin and are activated during stress or emotional situations, producing a thicker secretion that can lead to body odor. Endocrine glands are part of the endocrine system and secrete hormones directly into the bloodstream, which is unrelated to the secretion of oil for skin maintenance.