Though not the most common occurrence, Automation Engineers sometimes become Automation Engineering Managers, where the average income is $105K per year.
For example, the antrum of the stomach (gastric antrum) is a portion before the outlet, which is lined by mucosa and does not produce acid. The paranasal sinuses can be referred to as the frontal antrum, ethmoid antrum, and maxillary antrum.
The stomach has 5 parts: 1  Cardia: The first portion (closest to the esophagus) 2  Fundus: The upper part of the stomach next to the cardia. 3  Body (corpus): The main part of the stomach, between the upper and lower parts.  Antrum: The lower portion (near the intestine), where the food is mixed with gastric juice.