What are some examples of secretory cells?
Endocrine and exocrine pancreatic cells, thyroid and parathyroid endocrine cells, adenohypophysis, adrenal and pineal endocrine cells, the many kinds of gastric exocrine and endocrine cells, the mucus secretory cells of the lungs and of the bowels, the lacrimal gland cells, the salivary gland cells, the sebaceous gland cells, the secretory cells of the ovaries and testicles, etc., are all instance of secretory cells.