What is the primary function of exocrine glands?

Exocrine glands primarily function by secreting substances into ducts that lead to specific organs or surfaces. This process is crucial for various physiological processes. For instance, glands such as salivary glands, sweat glands, and the pancreas (which has both endocrine and exocrine functions) utilize ducts to transport their secretions. Those secretions could include digestive enzymes, sweat, or mucus, which play vital roles in digestion, thermoregulation, and protection of surfaces.

This mechanism of secretion contrasts with endocrine glands, which release hormones directly into the bloodstream to exert their effects on distant organs or tissues. The focus of exocrine glands on ductal secretion highlights their role in localized physiological processes rather than systemic hormonal regulation. Therefore, understanding the distinct pathways and functions of exocrine glands enhances comprehension of human physiology and the complexity of the endocrine system as a whole.