Salivary amylase is responsible for breaking starch into polypeptides. The enzyme works best at pH 6.9. At this level, it is slightly acidic in nature.

It is a part of the large intestine and does not produce any enzyme. It only produces mucus.

Cystic duct connects gall bladder to the common hepatic duct that arises from the liver. Cystic and common hepatic ducts together form the common bile duct.

This type of teeth are found in vertebrates where each tooth is embedded in a socket of jaw bone that makes the attachment strongest.

It is present between the oesophagus and the stomach. It is also called as the gastro-oesophageal sphincter.

Holozoic mode of nutrition occurs in organisms when whole animals and plants or both are consumed either in solid or liquid form through the mouth. This mode of nutrition is found in most animals, including humans.

Diffused patches of lymphoid tissues are present throughout the small intestine and are aggregated in the ileum to form Peyer's patches.

Pepsinogen is converted into pepsin at an acidic pH of 1.8 in gastric gland of the stomach.

This hormone is secreted by the epithelium of stomach. It is responsible for the stimulation of HCl and pepsin.

Crypts of Leiberkuhn contain argentaffin cells that are responsible for the secretion of hormones.

Most of the digestion takes place in the duodenum. It is where pancreatic juice and bile mix with the food chyme.

It is a hormone secreted from the wall of stomach. It is responsible for the stimulation of gastric gland to secrete HCl.

It is the largest salivary gland present in front of the ears and is connected to Stenson's duct.

Paneth cells are present in crypts of Leiberkuhn. They are responsible for the secretion of lysozyme.

Mucosa is the innermost layer of the wall of the alimentary canal which is devoid of circular and longitudinal muscles. Instead, it consists of glands responsible for the secretion of mucus and other enzymes.