HLSC 2P50 Chapter Notes - Chapter 5: Libido, Night Sweats, Leydig Cell
24 Jan 2017
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Document Summary
Hormones are chemicals released by a cell or gland that provide connections within and between the nervous system and the reproductive system. Hormones affect every body system involved in sexual behaviour. Coined in 1905 by ernest starling, from the greek word ormao: to arouse or. Hormones play a complex role in growth, aging, metabolism, immune response, sexual response and reproduction. They can also affect tissues and cells in different people (through smell) Hormones are released into the bloodstream by endocrine glands (ex. Hormones can be grouped into three classes based on chemical composition: lipid and phospholipid hormones: derived from lipids, steroid hormones: (androgen, estrogen, progesterone) structurally composed of carbon rings, derived from cholesterol, eicosanoid hormones: (ex. Prostaglandins) long-chain fatty acids derived from arachidonic acid: peptide hormones: (follicle stimulating hormone, luteinizing hormone, vasopressin, oxytocin) consist of peptides (aa, monoamine hormones: (adrenaline and noradrenaline) derived from aromatic amino acids.
