Question

how is movement of food through alimentary canal regulated

Answer 1

Movement of food through alimentary canal is regulated by peristaltic movement of muscles all along the gut

Answer 2

The process of breaking down large insoluble food fragments into smaller and water-soluble particles, which can be easily absorbed by the blood plasma is termed as digestion. All parts of the body are involved in the uptake and digestion of food along with the elimination of undigested material constitute from the digestive system.

Human Digestive System

A human digestive system which is also known as the alimentary canal is a muscular tube which extends from the mouth to the anus. The parts of the digestive system include – mouth, oral cavity, teeth, esophagus, pharynx, stomach, small intestine, large intestine, and anus.

Mouth

Mouth is the opening through which intake of food occurs.

Oral cavity

The oral cavity has three parts –palate, tongue, and teeth.

Palate -It forms the roof of the oral cavity. Anterior part is called hard palate and the posterior part is called soft palate.

Tongue -Tongue is a muscular and glandular structure attached to the base of the oral cavity. On the upper surface, it has a V-shaped furrow called sulcus terminalis. It divides the tongue into the anterior oral part and posterior pharyngeal part. Its upper surface also consists of tiny projections called lingual papillae. Lingual papillae are of three kinds in humans-