GENERAL HISTOLOGY

Detailed explanation-1: -The word “hormone” was coined by the English physiologist Ernest H. Starling in connection with the discovery of secretin, the first hormone, in 1902.

Detailed explanation-2: -The first defined hormone and its discovery In 1902, William Bayliss and Ernest Starling found that in response to the delivery of acidic fluid from the stomach to the intestine, secretin, an internal secretion, was released into the blood from the endocrine cells of the duodenum.

Detailed explanation-3: -Etymology. From Ancient Greek (hormḗ, “rapid motion forwards, onrush, onset, assault, impulse to do a thing, effort”), whence (hormáō), (hormô, “to set in motion, to urge on, to cheer on, to make a start, to hasten on”).