1 / 7

Ovulation and Menstruation

Ovulation and Menstruation. Function of Menstrual Cycle. Uterine walls thickens with rich blood supply in preparation for a fertilized egg If fertilization does not occur the walls break down and the cycle repeats again. Stages of Menstruation. Stage 1 – Follicular Phase

larya
Download Presentation

Ovulation and Menstruation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ovulation and Menstruation

  2. Function of Menstrual Cycle • Uterine walls thickens with rich blood supply in preparation for a fertilized egg • If fertilization does not occur the walls break down and the cycle repeats again

  3. Stages of Menstruation • Stage 1 – Follicular Phase • Stage 2 – Ovulation • Stage 3 – Luteal Phase • Stage 4 – Menstruation

  4. Follicular Phase • Pituitary gland in the brain released two hormones • Follicle stimulating hormone (FSH) • Luteinizing hormone (LH) • Follicle in ovary begins to develop and release estrogen • Increased estrogen levels stimulates lining of uterus to thicken

  5. Ovulation • High level of estrogen causes pituitary gland to release a rush of LH • When LH level peaks it causes the follicle to rupture and release an egg cell

  6. Luteal Phase • Broken follicle forms a yellow colored structure called the corpus luteum • Corpus luteum releases the hormones estrogen and progesterone that helps to stimulate further growth of the uterine lining

  7. Menstruation • If an egg is not fertilized the corpus luteum breaks down • Less estrogen and progesterone is released and the lining of the uterus breaks down • Low levels of estrogen stimulate the release of FSH and LH from the pituitary gland and the cycle begins again

More Related