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Testosterone!
The interstitial cells of the testes produce the hormone testosterone.
The release of Follicle-stimulating hormone(FSH) and Luteinizing hormone(LH) stimulates cells in the testes to produce Testosterone.
Leydig cells produce testosterone in the testes. They are also called interstitial cells.
The testes are two oval shaped male reproductive glands that produce sperm and the hormone testosterone.
Testosterone IS a hormone. It is secreted by the testes.
testosterone
Testosterone, produced by the testes, stimulates spermatogenesis.
The medical term for the hormone secreted by the testes is testosterone.
Leydig Cells produce testosterone. They are interstitial cells that lie between the seminiferous tubules in the testes and release testosterone when stimulated by lutenising hormone (produced by the pituitary gland.)
Testosterone
They have absolute control over the testes. The pituitary releases gonadotropines called follicule stimulating hormone (FSH) and luteinizing hormone (LH) which binds cell membrane receptors in the testes cells which then stimulates the production of testosterone. It also stimulates cell division (meiosis) in the testes for production of spermatozoa.