A hormone (from Greek ὁρμή, “impetus”) is a chemical released by a cell or a gland in one part of the body that sends out messages that affect cells in other parts of the organism. Only a small amount of hormone is required to alter cell metabolism. In essence, it is a chemical messenger that transports a signal from one cell to another.
Created: 2019-06-25 00:15:37 EDT (-0400)
Last modified: 2019-06-25 00:15:37 EDT (-0400)