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Ovarian Cycle 28 days The cycle in which an oocyte matures, erupts from the ovary, and then travels down the oviduct. If not fertilized the process repeats all over again.
Follicular Phase Follicles in the ovary mature
Ovulation ovarian follicle ruptures and discharges an ovum (gamete)
Luteal Phase Forms corpus luteum which produces progestogens (required during pregnancy.
Menstrual Cycle If implantation does not occur the corpus luteum will die, dropping progesterone and estrogen hormones causing the uterus to shed its lining
Menstruation Days 1-5 “period” Shedding of blood or endometrium lining. Low on iron
Preovuiatory Days 6-14 Wall of endometrium begins to thicken.
Postovulatory Days 15-28 progesterone produced by ovaries Builds up endometrium wall Protects wall
Ovulation and Menstruation. Function of Menstrual Cycle Uterine walls thickens with rich blood supply in preparation for a fertilized egg If fertilization.
The Menstrual Cycle Purpose: to bring an egg to maturity and to prepare the reproductive system for pregnancy. 28 day cycle (on average) Repeats continuously.
PART 2B THE FEMALE REPRODUCTIVE SYSTEM - HORMONES.
Menstrual cycle is regulated by fluctuating levels of sex hormones These hormones produce certain changes in the ovaries and uterus.
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Male Structure Male Structure Testes- Testes- Male gonads Male gonads Produce sperm Produce sperm 2, located in scrotum 2, located in scrotum Seminiferous.
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C) The Menstrual Cycle The female menstrual cycle takes an average of 28 days. (Variation is common). The cycle occurs in four phases if no fertilization.
The Menstrual Cycle. Releasing of one egg (ovulation) every month from the ovaries 4 steps: Preparing the egg Releasing egg Preparing the endometrium.
Hormonal Control of the Menstrual Cycle Inside the ovary of females there are large sac like structures called Graafian follicles Each follicle contains.
Aim: How can hormones influence the reproductive cycles in humans? Do Now: Using the diagrams below, which structures produce hormones? What hormones are.
Female Hormonal Cycle or the MENSTRUAL CYCLE MENSTRUAL CYCLE Normal cycle length is considered 28 days, however it can range from days divided.
The Female Reproductive System. Overview The female reproductive system produces only a limited number of gametes Most structures are located inside the.
Hormones of the female reproductive cycle: Anterior pituitary gland: Follicle stimulating hormone (FSH): Stimulates growth of ovarian follicles, and estrogen.
Menstrual Cycle. The Cycle Strongly linked to the endocrine system (hormone based) Typically takes 28 days to cycle through 4 phases ◦ Follicular ◦ Ovulation.
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