Bio47S11HO20

Bio47S11HO20 - Biology 47 - Anatomy Lecture 20 Reproductive...

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1 Biology 47 - Anatomy Lecture 20 Reproductive Systems Reproductive Systems : 1. Gonads : Paired : Site of : Begins: Complete: Developing Follicle : Combination of: a. Oocyte (egg): b. Granulosa Cells : c. Thecal Cells : Function : Follicle Development : Stimulated by: Released from : a. Birth : 2 million Primordial Follicles Arrested: Set number of : b. Puberty : 400,000 Primordial Follicles c. Menstrual Cycle : Follicles stimulated Starts : Average Ends : Average Stimulated by : Follicle Developmental Stages : 1. Primordial follicles : 2. Primary Follicles : Feature: Timing : 3. Secondary follicle : Feature: Granulosa Cells secrete: 4. Tertiary Follicle (Mature/Graafian) Feature: Oocyte suspended on : Timing : Size: d. Ovulation :
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2 http://www.youtube.com/watch?v=nLmg4wSHdxQ Hormone Production : Before Ovulation : After Ovulation : Remaining Follicle becomes : Ovary Location : Level of : Lateral to : Posterior to: Fallopian (Uterine) tube Size : ~2”x1”x0.33” Stabilized by: 1. Ovarian Ligament : Extends from ovary : 2. Suspensory Ligament : Extends from ovary to lateral : Contains : 2. Fallopian Tubes ( Uterine Tubes or Oviducts ) : Smooth Muscular Tube : Epithelium : Functions : a. Draw ovulated oocyte into tube b. Transport oocyte to: Uterus Peristalsis and cilia push oocyte Timing: c. Site of : Timing: 4 Anatomical regions : a. Infundibulum : “ funnel ” Expanded region Surrounds : Fimbriae : “ fringe ” : Swell and pulse, pulling oocyte into tube Ovaries are NOT :
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This note was uploaded on 09/02/2011 for the course BIO 47 taught by Professor Peters during the Spring '11 term at West Valley.

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Bio47S11HO20 - Biology 47 - Anatomy Lecture 20 Reproductive...

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