Final answer:
Recanalization is essential for forming a continuous esophageal passage, and without it, a person would face feeding issues, malnutrition, respiratory complications, and increased risk of acid reflux or GERD.
Step-by-step explanation:
If the esophagus never goes through the recanalization process, it can result in an atresia, where the esophagus does not form a continuous passage from the mouth to the stomach, leading to serious issues. Without recanalization, food cannot pass from the mouth to the stomach for digestion, leading to difficulty with feeding, malnutrition, and potential respiratory complications due to aspiration. As the esophagus naturally remains in a collapsed state, it requires the peristalsis to push food through; however, without a clear passage, even strong peristaltic movements would not be effective.
Normally, the smooth muscle in the walls of the esophagus produces peristaltic waves to propel food toward the stomach. Food then passes into the stomach at the lower esophageal sphincter, which not only allows food to enter but also prevents stomach acids from backing up into the esophagus. If this recanalization does not occur, a subject not only faces difficulties due to the improper formation of the esophagus but may also experience complications related to acid reflux or gastroesophageal reflux disease (GERD), as the structures that normally prevent backflow of acid are compromised.