Chief cells ( stomuch) secreate pepsinogen , a inactivae enzyme. And in small intestine it converted into pepsin ,active form. Chief cell also present in parathyroid gland release pth harmone regulates level of calcium, magnesium, HPO4 ions in blood.
The dictionary definition of afternoon is simply the hours between noon and evening. In the United States, the typical workday ends at 5:00 p.m.
The noun AFTERNOON has 2 senses: 1. the part of the day between noon and evening. 2. a conventional expression of greeting or farewell. Familiarity information: AFTERNOON used as a noun is rare.