Final answer:
c. Peristalsis. Food moves through the alimentary canal through a process called peristalsis, which involves sequential muscle contractions. The stomach muscles churn the food to break it down and mix it with gastric juices. It is a key mechanism for the movement of food, liquids, and other substances from one end of the digestive tract to the other.
Step-by-step explanation:
Food moves through the alimentary canal through a process called peristalsis. Peristalsis is the sequential contraction and relaxation of muscles in the walls of the food tube, which propels the food in one direction. In the stomach, the muscles churning the food to break it down into smaller pieces and mix it with gastric juices. This process continues throughout most of the alimentary canal, including the small intestine.
Peristalsis is the coordinated, rhythmic contraction and relaxation of muscles in the walls of the alimentary canal (digestive tract), which propels the contents through the digestive system. Peristalsis is the sequential contraction and relaxation of muscles in the walls of the food tube, which propels the food in one direction. In the stomach, the muscles churning the food to break it down into smaller pieces and mix it with gastric juices. It is a key mechanism for the movement of food, liquids, and other substances from one end of the digestive tract to the other. Peristalsis helps to mix and churn the contents while moving them along the gastrointestinal tract, facilitating digestion and absorption.