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Chapter 17 Reproduction in Humans Lesson 2 - The Menstrual Cycle

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Menstrual cycle
Menstruation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Menstrual (oestrous) cycle ,[object Object],[object Object],[object Object]
Menstrual (oestrous) cycle ,[object Object],[object Object],[object Object],[object Object],primary follicle Graafian follicle
Menstrual (oestrous) cycle ,[object Object],[object Object],[object Object],[object Object]
Menstrual (oestrous) cycle ,[object Object],[object Object],[object Object],primary follicle Graafian follicle (secretes progesterone + oestrogen)
Follicle developement
Hormonal control of menstrual cycle ,[object Object],[object Object],[object Object],[object Object],[object Object]
Hormonal control of menstrual cycle ,[object Object],[object Object],[object Object],[object Object]
Hormonal control of menstrual cycle ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Menstrual Cycle primary follicle Graafian follicle (secretes progesterone + oestrogen) (causes ovulation + formation of corpus luteum) (keeps the uterine lining thick and well supplied with blood, preparing it for implantation of the embryo + inhibits both FSH and LH production) Ostrogen causes the repair and growth of the uterine lining + stimulates the pituitary gland to secrete LH + high concentration of oestrogen in blood inhibits FSH production FSH stimulates development of follicles in ovaries + follicles in the ovary to secrete oestrogen oestrogen
If fertilization ,[object Object],[object Object]
Qn: From your knowledge of the menstrual cycle, how do you think oral contraceptives work? ,[object Object],[object Object],[object Object]

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Chapter 17 Reproduction in Humans Lesson 2 - The Menstrual Cycle

  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 8.
  • 9.
  • 10.
  • 11. The Menstrual Cycle primary follicle Graafian follicle (secretes progesterone + oestrogen) (causes ovulation + formation of corpus luteum) (keeps the uterine lining thick and well supplied with blood, preparing it for implantation of the embryo + inhibits both FSH and LH production) Ostrogen causes the repair and growth of the uterine lining + stimulates the pituitary gland to secrete LH + high concentration of oestrogen in blood inhibits FSH production FSH stimulates development of follicles in ovaries + follicles in the ovary to secrete oestrogen oestrogen
  • 12.
  • 13.