Final answer:
The pylorus is the anatomic term for where food exits the stomach and enters the small intestine, controlled by the pyloric sphincter.
Step-by-step explanation:
The anatomic term for where food exits the stomach and enters the small intestine is the pylorus. The pylorus is a muscular valve that connects the stomach to the duodenum, the first part of the small intestine. The pyloric sphincter, located at the pylorus, regulates food passage from the stomach to the duodenum, which is the first part of the small intestine. Once the food enters the duodenum, it mixes with digestive juices from the pancreas, liver, and gallbladder, which aid in the digestion and absorption of nutrients.