What type of gland secretes to the outside of the body utilizing ducts?

Exocrine glands are specialized structures that secrete their products through ducts to the outside of the body or into hollow organs. This includes glands like sweat glands, salivary glands, and sebaceous glands. The secretion occurs directly at the site of action, helping to perform functions such as temperature regulation and digestion.

The other options listed do not meet this description. Endocrine glands, for example, secrete hormones directly into the bloodstream rather than through ducts, which is a key distinction from exocrine glands. The thyroid gland and the pineal gland are examples of endocrine glands; they release hormones that enter the circulatory system to regulate various physiological functions rather than secreting substances externally.