Urichtrakti

Urichtrakti is a term that refers to the upper digestive tract, which includes the mouth, pharynx, esophagus, and stomach. This region plays a crucial role in the initial stages of digestion, where food is ingested, mixed with saliva, and then transported to the stomach via the esophagus. The mouth is the first part of the upper digestive tract, where food is chewed and mixed with saliva, which contains enzymes that begin the breakdown of carbohydrates. The pharynx is a muscular tube that connects the mouth and nasal cavities to the esophagus and larynx. It serves as a passageway for both food and air. The esophagus is a muscular tube that transports food from the pharynx to the stomach. It is lined with smooth muscle that contracts in a wave-like motion to propel food downward. The stomach is a J-shaped organ located in the upper left quadrant of the abdomen. It receives food from the esophagus and secretes digestive enzymes and acids that break down food further. The upper digestive tract is innervated by the autonomic nervous system, which controls the rhythmic contractions of the esophagus and the secretion of digestive enzymes and acids in the stomach. The upper digestive tract is also lined with mucus, which protects the tissue from the acidic environment and the mechanical action of digestion.