Reproductive System Lectures Part II 41-42 w2012

Reproductive System Lectures Part II 41-42 w2012 -...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Reproductive System II: Female reproductive physiology Lectures 41-42 Sherwood 7th edition Chapter 20 pp. 764-782 Topics to be covered in these lectures Oogenesis The ovarian cycle Hormonal control of the ovarian cycle Overview Early follicular phase Late follicular phase and ovulation Luteal phase Systemic effects of estrogen and progesterone Control of uterine (menstrual) cycle Fertilization to implantation Role of human chorionic gonadotropin (Overview of hormonal contraception methods) Female Reproductive Physiology • Characterized by complex cycling • Ovaries: Primary female reproductive organs • Secrete female sex steroid hormones beginning at puberty – Estrogen – Progesterone as well as inhibin, a peptide hormone • Produce ova (oogenesis) At birth 1-2 X 10 6 primary oocytes arrested in meiosis I By puberty: 10,000 Primary oocytes 400-500/28 day cycle ovulated until about age 50 (menopause) Fertilization completes meiosis, then haploid ovum nucleus fuses with haploid sperm nucleus Fig. 20-15, p. 767 The ~28 day ovarian cycle: from puberty to menopause Credit: © Gary Martin/ Visuals Unlimited Preovulation: Follicular phase Post-ovulation: Luteal phase Fig. 20-16, p. 768 Fig....
View Full Document

This note was uploaded on 04/05/2012 for the course NPB NPB101 taught by Professor Weidner during the Spring '08 term at UC Davis.

Page1 / 16

Reproductive System Lectures Part II 41-42 w2012 -...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online