Each of these substances is produced by exocrine or endocrine cells found in the mucosa. 1  The main exocrine product of the stomach is gastric juice â a mixture of mucus, hydrochloric acid, and digestive enzymes. 2  Gastric juice is mixed with food in the stomach to promote digestion.
Industry is the production of goods or related services within an economy. The major source of revenue of a group or company is the indicator of its relevant industry. When a large group has multiple sources of revenue generation, it is considered to be working in different industries.
InvestorWords.com - Online Investing Glossary. A basic category of business activity. The term industry is sometimes used to describe a very precise business activity (e.g. semiconductors) or a more generic business activity (e.g. consumer durables). If a company participates in multiple business activities, it is usually considered to be in the industry in which most of its revenues are derived. â The CEOs of the oil & gas industry gathered for a symposium on recent drilling issues in the Marcellus shale of Western Pennsylvania.