The digestive glands associated with the alimentary canal include the salivary glands, the liver and the pancreas. Salivary glands • (Secretion of salivary gland is known as saliva) • Saliva is mainly produced by three pairs of salivary glands, the parotid (cheek), the sub-maxillary / sub-mandibular (lower jaw) and the sub-lingual (below the tongue). • These glands situated just outside the buccal cavity secrete salivary juice into the buccal cavity. Liver • Liver is the largest gland of the body. • Its weighing about 1.2 to 1.5 kg in an adult human. • It is situated in the abdominal cavity, just below the diaphragm and has two lobes. • The hepatic lobules are the structural and functional units of liver. • Hepatic lobules containing hepatic cells arranged in the form of cords. • Each lobule is covered by a thin connective tissue sheath called the Glisson's capsule. • The bile secreted by the hepatic cells passes through the hepatic ducts. • Bile is stored and concentrat...