NEET PG DENTAL EXAM

Detailed explanation-1: -Waves of muscle contractions called peristalsis (per-uh-STALL-sus) force food down through the esophagus to the stomach. A person usually isn’t aware of the muscle movements that push food through the digestive tract. The stomach: At the end of the esophagus is a muscular ring or valve called a sphincter (SFINK-ter).

Detailed explanation-2: -Swallowing, done by muscle movements in the tongue and mouth, moves the food into the throat, or pharynx (pronounced: FAIR-inks). The pharynx is a passageway for food and air. A soft flap of tissue called the epiglottis (pronounced: ep-ih-GLAH-tus) closes over the windpipe when we swallow to prevent choking.

Detailed explanation-3: -Once inside your esophagus, waves of muscular contractions (peristalsis) push the food downward. The food passes through your diaphragm and reaches your lower esophagus. At the opening of your lower esophagus, there’s another ring-shaped muscle called the lower esophageal sphincter (LES).