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Animal Science/Dairy Science 434

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Reproductive Physiology Lecture 1: Introduction, Female Anatomy Potential Ways To Interpret Image Direct Observation Looking into each other s eyes Touching ... – PowerPoint PPT presentation

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Title: Animal Science/Dairy Science 434


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

2
How do you interpret this image?
3
Potential Ways To Interpret Image
  • Direct Observation
  • Looking into each others eyes
  • Touching
  • Physiological changes
  • Heart rates increasing
  • Increased blood flow to reproductive organs
  • Vagina, Clitoris, Uterus (enhanced by estrogen)
  • Erection of penis, contractions of epididymis

4
Instructor
  • John J. Parrish
  • 714 Animal Science
  • parrish_at_ansci.wisc.edu
  • 263-4324

5
Laboratories
  • Tuesday, Wednesday
  • Room 128 or 134 Animal Science
  • 330 - 530
  • may last until 600 so plan appropriately

6
Text (Required)
  • Pathways to Pregnancy and Parturition - Second
    Revised Edition
  • P.L. Senger
  • UW Bookstore
  • Library (not on reserve)

7
Web Page http//www.wisc.edu/ansci_repro/
  • Syllabus (lecture, lab and exam schedule,
    grading)
  • Lecture Outlines and Handouts
  • Labs
  • Project Information

8
434 Web Site Modifications
  • Updates may occur daily.
  • Lecture outlines and labs are currently for last
    year
  • Fall 2006 lecture updates are usually done by
    815 the day of lecture (no guarantee)
  • Lab material will be updated by the time of
    Tuesdays lecture.

9
Lecture 1
Female Reproductive Tract Anatomy
10
Learning Objectives
  • To be able to describe the female reproductive
    system in cattle.
  • Structure
  • Function

11
Equine - Horse
12
Bovine - Cattle
Male
Bull
13
Ovine - Sheep
14
Porcine - Swine - Pig
15
Avian - Chicken
16
(No Transcript)
17
Rectum
Uterus
Vulva
Ovary
Vagina
Pelvis
Bladder
Oviduct
Cervix
Broad Ligament
18
Broad Ligament
  • connective tissue sheet which supports and
    suspends the reproductive tract

19
Broad Ligament
mesometrium
mesovarium
mesosalpinx
20
Ovary - Primary Sex Organ
  • Functions
  • Hormonal
  • Estrogen
  • Progesterone
  • Female gamete
  • Oocyte

21
Ovary
- Estrogen, Oocyte
22
Ovary
85 of Ovarian Cancers
23
Atretic follicle
24
Primordial Follicle Primary Follicle
Secondary follicle Tertiary follicle

Follicle Cells
25
Tertiary Follicle
Antrum
(Follicular Fluid)
26
Tertiary Follicle
Theca Interna
Granulosa
Oocyte
Cumulus Oophorus
Antrum
27
Follicular Blood Supply
Theca interna cells
Basement Membrane
Granulosa cells
Follicular fluid
Capillary network
28
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
29
Functions of Oviduct
  • Gamete Transport
  • Sperm
  • Oocyte
  • Supports early embryo development
  • Transport of embryo to uterus

30
Uterine Horn
Oviduct
Cumulus Oophorus and Oocyte
Ovary
Follicle
31
Oviduct
Ampulla
Mesosalpinx
Isthmus
UT Junction
Uterine Horn
32
Oviduct Histology
Mucosa
  • Ciliated Columnar
  • Nonciliated Columnar

33
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

34
Uterus (bovine)
horn
body
  • Bicornuate
  • poorly to moderately developed uterine horns
  • uterine body
  • one cervix

cervix
35
Caruncles
36
Uterine Histology
Endometrium
Endometrial Glands
Perimetrium
Myometrium
37
Uterine Histology
Mucosa
Endometrial Gland
Endometrium
Submucosa
Myometrium
Perimetrium
38
Functions of the Cervix
  • Transport of sperm
  • Barrier to sperm (species dependent)
  • Reservoir for sperm
  • Blocking bacterial invasion during pregnancy
  • Birth canal

39
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
40
Cervix
COW
Internal Os
Cervical Ring
Cervical Ring
Fornix
Fornix
External Os
Fornix
EWE
Anterior Vagina
Anterior Vagina
41
Functions of the Vagina
  • Copulatory organ
  • Glands secrete lubrication
  • Birth canal
  • Glands secrete pheromones

42
Vagina
Anterior Vagina
Cervix
Stratified Squamous Epithelium
Columnar Epithelium
Urethra
Submucosa
Submucosa
43
Posterior Vaginal Histology
Stratified Squamous Epithelium
Mucosa
Submucosa
44
Function of External Genitalia
  • Labia
  • Closes entrance to vagina
  • Clitoris
  • Female sensory organ

45
External Genitalia of the Cow
Anus
Vulva
Labia
Clitoris
Labia
46
Phenomena For Fertility
  • vagina dentata - a vagina with teeth
  • female bedbug - no vagina
  • hysterectomy - if woman went to long without
    becoming pregnant then uterus would wonder in
    body causing hysteria and other distresses
  • hyena - clitoris is very large and looks like the
    male penis female also has a false scrotum
    (labia) female is the dominate sex and produces
    more testosterone than male
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