Did you know that the oral cavity is line by mucous membrane which may or may not be keratinized? This video provides a brief summary of the histology of the keratinized masticatory mucosa. 0:00 introduction 0:10 epithelium 0:17 connective tissue 0:45 basal cell layer 1:05 spinous cell layer 1:27 granular cell layer 2:05 keratinized cell layer 3:07 sites of masticatory mucosa 3:35 connective tissue