Glands may be classified in a variety of ways. Perhaps the most basic is classifying glands as either “exocrine” (secretion into a lumen or onto a surface) or “endocrine” (secretion into the circulation via capillaries).
The most basic way of classifying glands would be “exocrine” and “endocrine.” Exocrine means secretion into a lumen or onto a surface. Endocrine means secretion into the circulation via capillaries. Hope this helps! If you could please mark me brainliest that would be awesome!