Reproductive Hormones Flashcards
What is spermatogenesis
Production of sperm
Continuous process in the body
What is oogenesis
Production of ovum
Part of menstrual cycle
What are these two process known as
Gametogenesis
Controlled by two very important hormones such as the luteinising hormone and the follicle stimulating hormone
Spermatogenesis occurs continuously in the body by
LH stimulates testosterone to be produced
Causes production and maturation of sperm
Inhibin is produced by sertoli cells and inhibits follicle stimulating hormone to stop spermatogenesis
Oogenesis is part of the menstrual cycle by
FSH stimulates one or more follicles to mature
LH stimulates mature follicles to produce more oestrogen and inhibit LH and FSH production
Oestrogen and inhibin from mature follicles inhibits secretion of FSH so no more follicles mature
Increased oestrogen levels stimulates LH and FSH production which leads to ovulation
What is the Gronadotropin releasing hormone
Secreted by the hypothalamus
Controls other reproductive hormones
Light stimulates pineal gland reducing melatonin secretion, GnRH secretes causing production of LH and FSH to be stimulated
What is oestrogen
Rebuilds uterine lining after menstruation
Stimulates release of LH by pituitary
What is progesterone
Maintains the lining of the uterus ready for fertilised egg
Inhibits production of FSH by pituitary
Progesterone is mainly produced by corpus luteum and in smaller amounts by ovaries
What is testosterone
Produced by testes
Enables development of sex organ tissues and secondary sexual characteristics
What is the androgen binding hormone
Produced by the seminiferous tubules
Maintains high concentration of testosterone in testes
What is prostaglandins
Help with uterine contractions
Produced by most cells
What is oxytocin
Produced by hypothalamus
Released by pituitary gland
Helps stimulate uterine contractions and lactations
What is cortisol
Stress hormone
Linked to increased maternal interest in their offspring
