Salivary Glands: Anatomy, Classification, and Parenchymal Structure

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Dentistry Program Spring 2026 Course Title and Code : Oral Biology II BDS124 Lecture Title: Salivary Gland 1 Instructor’s Name: Prof Samah Mehanny 3/13/2026 Prepared by Samah Mehanny Definition Salivary glands are Merocrine Exocrine glands that produce and secrete saliva. Saliva is involved in the digestive process and in the protection of oral tissue. Merocrine (merocrine means discharge of the Secretory material without any loss of the cytoplasm) Exocrine (means that the gland connected with the surface epithelium by a duct) Samah Mehanny Salivary Glands Exocrine Merocrine Exocrine means; gland that forms substances and releases them through a duct or opening to a body surface. Merocrine means; the secretions of the cell are excreted via exocytosis from the secretory cells Samah Mehanny A: is holocrine type (the mode of secretion is by disintegrating the whole cell and its content) (sebaceous glands). B is the merocrine type (the mode of secretion is by secretion of the cell content, keeping intact cell membrane)(most of glands in the body). C is an apocrine type gland (the mode of secretion is by pinched off cell) (Mammary glands). Samah Mehanny Classification of salivary glands...