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Animal Science/Dairy Science 434

Animal Science/Dairy Science 434. Reproductive Physiology Lecture 1: Introduction, Female Anatomy. Instructor. John J. Parrish 714 Animal Science parrish@calshp.cals.wisc.edu 263-4324. Laboratories. Tuesday, Wednesday or Thursday Room 134 Animal Science 3:30 - 5:30 may last until 6:00.

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Animal Science/Dairy Science 434

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  1. Animal Science/Dairy Science 434 Reproductive Physiology Lecture 1: Introduction, Female Anatomy

  2. Instructor • John J. Parrish • 714 Animal Science • parrish@calshp.cals.wisc.edu • 263-4324

  3. Laboratories • Tuesday, Wednesday or Thursday • Room 134 Animal Science • 3:30 - 5:30 • may last until 6:00

  4. Text • Pathways to Pregnancy and Parturition • P.L. Senger • UW Bookstore • Library

  5. Web Page http://www.wisc.edu/ansci_repro/ • Syllabus • Lecture Outlines and Handouts • Labs • Old Exams • Project Information • Important Dates • Grading

  6. 434 Web Site Modifications • Updates may occur daily. • Lecture outlines and labs are currently for last year • 2001 lecture updates may be up the night before lecture but I only guarantee them by 8:00 AM the day of lecture. • 2001 lab material will be updated by the time of Tuesday’s lecture.

  7. Web Page Techniques • Netscape 4 or better • Internet Explorer 4 or better • Will work best from a campus networked computer • essential for video clips in WebCT • Display set for 800 X 600 • Frames were used in page construction • Printing (check FAQ) • movement within web site • Reload button • the site is continually being changed

  8. Initial Syllabus Lectures Labs Handouts Old Exams Project FAQ

  9. Syllabus

  10. Important Dates • Lecture Exams • February 22 • April 10 • May 12 (7:25 PM, Sat. ) • Lab Exams • February 27 (given 3X on Tuesday) • May 1 - 3 (taken in lab) • Oral Final • April 16 to end of class

  11. Grading The final grade will be curved but generally ends near the following percentages: A (100-93%), AB (88-93%), B (80-88%), BC (79-70%), C (69-60%), D (59-50%), F (<50%).

  12. Sheep Video

  13. Instructions • Graded exercise (5 points) • Write on a sheet of paper what is happening in the video. (2 minutes) • Print your name on the paper • Form groups of 4 or 5; elect recorder and reporter. • Take 4 minutes and discuss what is happening in the video and then make a list of these things. • Print names of group members at bottom of list.

  14. Lecture 1 Female Reproductive Tract Anatomy

  15. A cow is a bull’s way of making another bull. Rex M. Butterfield; The Angus Society of Australia

  16. Learning Objectives • To learn the different structures and nomenclatures for the parts of the female reproductive system. • To learn the basic functions for the different parts of the tract and how they work together.

  17. Names Species Common Adult Adult Name Female Male Bovine cattle cow bull Ovine sheep ewe ram Equine horse mare stallion Procine swine(pig) sow boar

  18. Female Reproductive Tract Sow Uterine Horn Vulva Vagina Broad Ligament Cervix Uterine Body Bladder Oviduct Ovary

  19. Uterine Body Uterine Horn Uterine Horn Ovary Ovary Oviduct Oviduct Cervix Bladder Vagina Urethra Clitoris Vulva

  20. Rectum Uterus Vulva Ovary Vagina Pelvis Bladder Cervix Oviduct Broad Ligament

  21. Broad Ligament • connective tissue sheet which supports and suspends the reproductive tract

  22. Broad Ligament mesometrium mesovarium mesosalpinx

  23. Ovary - Primary Sex Organ • Functions • Hormonal • Estrogen • Progesterone • Female gamete • Oocyte

  24. Follicle Corpus Luteum Corpus Luteum Progesterone Progesterone Ovary - Estrogen, Oocyte

  25. Germinal Epithelium Cortex Medulla Tunica Albuginea Blood and lymphatic Vessels & nerves } Hilus Ovary

  26. Ruptured follicle (ovulation) Tertiary follicle Primary follicle Egg nest Tertiary follicle Secondary follicle Corpus hemorrhagicum Corpus albicans Corpus luteum Atretic follicle

  27. Primordial Follicle Primary Follicle Secondary follicle Tertiary follicle Follicle Cells Nucleus • Flattened cells surround oocyte • Increase in size of oocyte andheight of follicular cells Ooplasma Follicular Cells • Surrounded by severallayers of follicular cells Oocyte • Follicle forms a fluid filled cavity • Differentiation of cell layersin the follicle wall Fluid Cavity Antrum

  28. Follicular Histology Primordial Primary

  29. Follicular Histology Secondary

  30. Tertiary Follicle Theca Externa Theca Interna Basement Membrane Granulosa Oocyte Cumulus Oophorus Antrum (Follicular Fluid)

  31. Tertiary Follicle Primary Follicles Secondary Follicle Theca Interna Granulosa Cumulus Oophorus Oocyte Antrum

  32. Follicular Blood Supply Theca interna cells Basement Membrane Granulosa cells Capillary network Follicular fluid

  33. Secondary Sex Organ: A Series of Tubes to Convey the Oocyte/Embryo/Fetus to the Outside Serosa Submucosa Longitudinal smooth muscle layer Lumen Circular smooth muscle layer Mucosa Muscularis

  34. Functions of Oviduct • Gamete Transport • Sperm • Oocyte • Supports early embryo development • Transport of embryo to uterus

  35. Isthmus Utero-Tubal Junction Ampullary-Isthmic Junction Ampulla Infundibulum Ostium Fimbria Uterine Horn Oviduct Cumulus Oophorus and Oocyte Ovary Follicle

  36. Oviduct Ampulla Mesosalpinx Isthmus UT Junction Uterine Horn

  37. Oviduct Histology Mucosa • Ciliated Columnar • Nonciliated Columnar

  38. Functions of the Uterus • Muscle contractions • Transport sperm • Expel fetus and placenta • Absorption and phagocytosis • Partially prepares sperm for fertilization • capacitation • Provides environment for embryo and fetal growth • Hormone production • Prostaglandin F2a production

  39. Uterus (bovine) horn • Bicornuate • poorly to moderately developed uterine horns • uterine body • one cervix body cervix

  40. Caruncles

  41. Uterine Histology Endometrium Endometrial Glands Perimetrium Myometrium

  42. Uterine Histology Mucosa Endometrial Gland Endometrium Submucosa Myometrium Perimetrium

  43. Functions of the Cervix • Transport of sperm • Barrier to sperm (species dependent) • Reservoir for sperm • Blocking bacterial invasion during pregnancy • Birth canal

  44. Internal Cervical Os External Cervical Os COW Uterine Body • Cervix is composed of thick connective tissue • Mucus is secreted near the time of breeding and ovulation. Cervix Cow has 4-5 annular rings Vagina

  45. Cervix COW Internal Os Cervical Ring Cervical Ring Fornix Fornix External Os Fornix Anterior Vagina EWE Anterior Vagina

  46. Functions of the Vagina • Copulatory organ • Glands secrete lubrication • Birth canal • Glands secrete pheremones

  47. Posterior Vagina (Vestibule) Fornix Vulva-Vaginal Sphincter Mucosa Vagina Anterior Vagina Cervix Stratified Squamous Epithelium Columnar Epithelium Urethra Submucosa Submucosa

  48. Posterior Vaginal Histology Stratified Squamous Epithelium Mucosa Submucosa

  49. Function of External Genitalia • Labia • Closes entrance to vagina • Clitoris • Female sensory organ

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