Signalling using hormones
Endocrine system is another system (in addition to the nervous system) used for communication around the body.
Endocrine system uses the blood circulatory system to transport its signals
The signals released by the endocrine system are molecules called hormones
Types of Hormones
Protein and peptide Hormones, derivatives of amino acids (adrenaline, insulin and glucagon)
Proteins are not soluble in the phospholipid membrane and…