Which of the following is an example of an exocrine gland?

The sebaceous gland is an example of an exocrine gland because it secretes its product, sebum, through ducts onto the skin’s surface. Exocrine glands are characterized by their mechanism of secretion, wherein they release their substances through ducts to specific sites. In this case, the sebaceous glands are found in the skin and play an essential role in moisturizing and protecting the skin and hair.

In contrast, endocrine glands such as the thyroid gland, pituitary gland, and adrenal gland secrete hormones directly into the bloodstream rather than through ducts. This fundamental distinction between exocrine and endocrine glands is crucial in understanding their functions and locations in the body.