Question

The pathologic disturbance of pyloric stenosis results from:

1.) edema of the pyloric muscle
2.) ischemia of the pyloric muscle
3.) hypertrophy of the pyloric muscle
4.) neoplastic obstruction

Answer 1

Pyloric stenosis is caused by the hypertrophy of the pyloric muscle, which leads to obstruction and potential complications such as hypochloremic alkalosis due to extensive vomiting.

Step-by-step explanation:

The pathologic disturbance of pyloric stenosis is caused by hypertrophy of the pyloric muscle. This condition can lead to obstruction at the pylorus, preventing chyme from passing from the stomach to the duodenum efficiently. The pylorus acts as a filter allowing only liquids and small food particles through the pyloric sphincter. When hypertrophic, the amount of chyme passing through may be further limited, impacting the efficiency of gastric emptying and leading to complications such as projectile vomiting and hypochloremic alkalosis due to the excessive loss of gastric juice.