This short video provides histological features of the pear-shaped gallbladder which is an accessory organ of the digestive system. We will look at all the layers the make up the gallbladder with the help of a microscopic slide. 0:00 introduction 0:57 epithelium 1:04 lamina propria 1:12 smooth muscle wall 1:40 serosa 2:03 mesothelial cells