Скачать или смотреть What are Hormones and who discovered them? Hormonal signalling?

#Hormones are chemical substances that act like messenger molecules in the body. After being made in one part of the body, they travel to other parts of the body where they help control how cells and organs do their work. For example, insulin is a hormone that's made by the beta cells in the pancreas.
Hormonal signaling involves the following steps: ... Transport of the hormone to the target cell(s) Recognition of the hormone by an associated cell membrane or intracellular receptor protein. Relay and amplification of the received hormonal signal via a signal transduction process: This then leads to a cellular response.
Who discovered hormones and what are they?

The English physician E. H. Starling discovered in collaboration with the physiologist W. M. Bayliss secretin, the first hormone,
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https://en.m.wikipedia.org/wiki/Hormo..., to%20the%20target%20cell(s)
https://my.clevelandclinic.org/health....