secretion(redirected from Secretions)
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secretionThe synthesis and release of chemical substances by cells or glands. Substances secreted include enzymes, hormones, lubricants, surfactants and neurotransmitters. Internal secretion is secretion into the bloodstream. External secretion may be into the intestinal canal or other organs or on to the skin. Compare EXCRETION.
- the process by which a useful substance produced in a cell is passed through the plasma membrane to the outside.
- the substance itself. Secretions are usually produced by gland cells, but may be the results of cell destruction as in SEBACEOUS GLANDS. Glands of internal secretion (ENDOCRINES) pass their secretions directly into the blood stream whereas glands of external secretion (EXOCRINES) pass their secretions into special ducts.
Patient discussion about secretion
Q. What's the secret to looking good and fit? My friend who regularly visits my beauty parlor became very slim within 3 months. To be honest I am jealous of her. What's the secret to looking good and fit?
Q. how do celebrities look so thin and beautiful? what is their secret?