Question

Where does the alimentary canal end ?

Answer 1

The gastrointestinal tract, which runs from the mouth to the anus in humans and other animals, contains all of the digestive system's organs. Food is swallowed and digested to extract nutrients and absorb energy, with waste excreted as faeces.

Complete answer:
The food digestion pathway in the alimentary canal is roughly as follows:
The meal is absorbed into the oral cavity, where it is chewed and moistened with saliva (a process known as mastication). Furthermore, the oesophagus transports the food bolus from the mouth cavity to the stomach. Food bolus is transformed to chyme in the stomach by the action of enzymatic secretions. The chyme is subsequently delivered to the small intestine, where it is further processed by enzymes and the bulk of the nutrients are absorbed.

The remaining food from the small intestine is transported to the large intestine for reabsorption of water and electrolytes. Solid waste is ejected from the body via the anal canal after water, remaining nutrients, and electrolytes have been reabsorbed.
The alimentary canal, also known as the digestive canal, begins in the mouth and terminates in the Anus. This canal is involved in food intake, digestion and nutrient absorption, as well as the elimination of solid waste produced during digestion.

Note:
The alimentary canal serves as an immunological barrier against a variety of pathogens. Gut-associated lymphoid tissue (GALT) and the varying pH conditions found throughout the alimentary canal perform this role. The bacteria in the gut also aid in immunological homeostasis.