3.睾丸功能的调节 下丘脑-腺垂体-睾丸轴及其反馈调节 GnRH→FSH,LH→T, inhibin 局部调节 丈持细胞-生精细胞-间质细胞
3. 睾丸功能的调节 ➢ 下丘脑-腺垂体-睾丸轴及其反馈调节 GnRH→FSH, LH →T, inhibin ➢ 局部调节 支持细胞-生精细胞-间质细胞
Male physiology The hypothalamus sends a hypothalamus releasing hormone (gonadotropin releasing hormone, GNRH)to the anterior pituitary that causes release of follicle stimulating Gnat hormone [FSH) and luteinizing hormone[LH). FSH stimulates production of sperm. LH stimulates interstitial cells, which lie between the seminiferous anterior tubules, to produce testosterone. Testosterone stimulates and maintains the male reproductive tract and FSH characteristics, such wth of body and facial hair, deepening ot voice, and general body proportions. It is also interstitial seminIferous essential for spermatogenesis tests tubules Negative feedback maintains relatively constant levels of these hormones testosterone sperm (plus inhibin)