SALIVARY GLAND HISTOLOGY: STRUCTURE,SECRETORY CELLS AND DUCTS
Author: Sanketh DS, MDS
Salivary glands (SGs) are exocrine glands present in the oral cavity, whose function is to secrete saliva. Saliva is a multifunctional fluid which has antibacterial proteins, lubricates the oral mucosa, maintains integrity of teeth and helps in digestion. SGs are broadly of two types, them being major and minor SGs. Parotid, submandibular and sublingual glands form the major glands which together secrete 90% of the saliva. Minor salivary glands are small aggregates of secretory tissue and are around 600-1000 in number. They are located throughout the oral cavity except in the gingiva and the anterior part of the hard palate. Though they secrete only 10% of the saliva, minor SGs are predominantly responsible for mucous salivary secretion lubricating the oral cavity.
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