Veterinary Histology and Embryology

BASED ON THE SHAPE OF THE SECRETORY UNIT

• If the secretory units are tubular in shape it is a tubular gland. If secretory units are more rounded, then they are called alveolar or acinar glands.
• Glands which have characteristics of both these, or which have tubular portions with terminal alveoli, are called tubuloalveolar glands.