reproductive hormones

• during puberty,reproductive hormones cause secondary sex characteristics to develop (underarm hair,breast development ,deepening of voice)
• testosterone is a male hormone,produced by the testes,that stimulates sperm production
• there are 4 hormones that regulates the menstrual cycle:

  FSH,Oestrogen, LH,Progestrone
• FSH: produced by the pituitary gland,causes egg to mature and ovaries to release oestrogen
• Oestrogen: prevents FSH release and causes LH to be released from pituitary gland
• LH: triggers ovulation and empty follicle to release progesterone
• Progestrone: inhibits FSH and LH to stop eggs maturing maintains uterus lining for pregnancy
• a few days after ovulation,the empty follicle stops producing progesterone,causing the uterus lining to break down