Exocrine glands are specialised glands that secrete their products, such as enzymes, mucus, sweat, or oil, into ducts. These ducts transport the secretions to specific target areas, both externally and internally, within the body. Exocrine glands are involved in a wide range of functions, including digestion, temperature regulation, lubrication, and protection.

Unit 3,

Reference: Oxford Concise Medical Dictionary (9th ed) Oxford University Press 2015 ISBN-13: 9780199687817, p1442