Final answer:
The medical term for narrowing of the pyloric orifice/pylorus is pyloric stenosis. Pyloric stenosis is a condition in which the muscles of the pylorus become thick and narrow, making it difficult for food to pass through. Treatment usually involves a surgical procedure called a pyloromyotomy.
Step-by-step explanation:
The medical term for narrowing of the pyloric orifice/pylorus is pyloric stenosis.
Pyloric stenosis is a condition in which the muscles of the pylorus, the opening between the stomach and the small intestine, become thick and narrow, making it difficult for food to pass through. This can lead to symptoms such as projectile vomiting, poor weight gain, and dehydration.
Treatment for pyloric stenosis usually involves a surgical procedure called a pyloromyotomy, which widens the pylorus and allows for normal passage of food.