THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Bolus is a semi-digested food which formed in the mouth. The process of intake of food inside the body through the mouth is known as ingestion. After ingestion, the solid hard materials are broken down into smaller pieces or chewed with the help of teeth.

Detailed explanation-2: -Abstract: The first step in the digestion process is mastication, or chewing, when food is broken down, lubricated with saliva, and formed into a cohesive mass known as the food bolus. Upon swallowing, the bolus moves to the stomach and undergoes further breakdown during gastric digestion.

Detailed explanation-3: -Towards the end of mastication, the tongue and roof of the mouth gather and shape the chewed food into a pellet called a bolus. Moisture and mucus bind and coat the bolus before it is pushed towards the back of the mouth and into the oropharynx (anterior portion of the throat).