Which glands are attached to hair follicles?

The correct answer is that apocrine glands are indeed associated with hair follicles. These glands are a type of sweat gland found in specific areas of the body, such as the armpits and groin, and they develop in connection with hair follicles. Apocrine glands are responsible for producing a thicker, milky secretion that usually becomes active during puberty, contributing to body odor when the secretions are broken down by surface bacteria.

On the other hand, sebaceous glands, while also linked to hair follicles, produce an oily substance known as sebum, which helps to lubricate and protect the skin and hair. Eccrine glands, another type of sweat gland, do not attach to hair follicles and instead open directly onto the skin's surface, primarily helping with temperature regulation through sweat. Endocrine glands function differently, as they secrete hormones directly into the bloodstream rather than through ducts. This distinction clarifies the specific roles and locations of each type of gland in relation to hair follicles.