Over 11,059,000 the human digestive system pdf tutoring sessions served! The digestive system is concerned with the breakdown of complex food substances and its conversion in to simpler components , its absorption through the blood stream and assimilation in the cells and tissues producing desired effects of growth etc. The digestive system in man comprises of different components each assigned with a specific function.
Basically, the the digestive system can be considered as a the food pipe or esophagus initiating from the buccal cavity or mouth and terminating in the anus with diversifications at different stages of its progression form the mouth to anus. The floor of the buccal cavity is provided with the muscular tongue with tastebuds that helps in tasting and mastication of the food.
The opening of the trachea is provided with an opening called glottis which gets closed by the membranous epiglottis during swallowing. It prevents entry of food particles in the trachea .