Esophagus is 25 cm long, passing from pharynx to stomach. Contains four layers: mucosa, submucosa, muscularis, and tunica adventitia. Upper third is striated muscle, middle third mixed, lower third smooth. Contains two sphincters: upper at cricoid cartilage, lower in diaphragmatic hiatus. Peristaltic contractions transport food through esophagus in 10 seconds
Gastrointestinal tract is hollow muscular tube from esophagus to anus. Organs have four layers: mucosa, submucosa, muscularis externa, adventitia. Mucosa lines internal passages, submucosa supports mucosa with blood vessels
Located in left hypochondrium and epigastric region of abdominal cavity. Entrance between 10th-11th thoracic vertebrae, exit between 12th-1st lumbar vertebrae. Consists of cardia, fundus, body, and pyloric part. Has greater and lesser curvatures, cardial notch, and angular incisura
Esophagus enters abdomen via diaphragm at T10 level. Stomach has cardiac notch and two curvatures: greater and lesser. Greater curvature runs left from cardia to pylorus. Lesser curvature starts right of cardia and runs right to pylorus
The stomach lies between the esophagus and duodenum in the abdominal cavity. It has two curvatures: the greater and lesser, forming a J-shape. The stomach can hold up to 2-3 liters of food
The stomach is a muscular, J-shaped organ located in the upper abdominal cavity. It is situated below the diaphragm and on the left side of the body. The stomach has four main regions: cardia, fundus, body, and pyloric antrum. The stomach expands when full and contains folds called rugae