The digestive tract in humans is composed mainly of the mouth,pharynx,esophagus,stomach,small intestine and large intestine. Within each of these organs processes ofmechanical and chemicaldigestion occur that produce as a result the general digestion.
People also ask
What is the function of the pharynx in digestion?
The pharynx(throat) is involved in both digestion and respiration. It receives food and air from the mouth, and air from the nasal cavities. When food enters the pharynx, involuntary muscle contractions close off the air passageways.
Is the esophagus mechanical or chemical digestion?
Ingestion starts both chemical and mechanical digestion. In deglutition, the tongue pushes the bolus toward the pharynx (throat) and into the esophagus, a muscular tube that leads from the throat to the stomach. Similarly, is the esophagus mechanical or chemical digestion? Digestion begins when food enters the mouth (oral cavity).
What is the difference between physical digestion and chemical digestion?
Physical digestion also occurs when a person eats food. There is no change in chemical structure or makeup, however, with physical digestion. Chemical digestion occurs throughout the digestive system, but it mostly occurs in the mouth, stomach, and small intestines.
How is food digested in the human digestive system?
Digestion begins when food enters the mouth (oral cavity). Both mechanical and chemical digestion occur in the mouth. The esophagus acts as a connection between the mouth and the stomach, but no digestion occurs here. The bolus then reaches the stomach, where more mechanical and chemical digestion take place.