Female%20Reproductive%20system - PowerPoint PPT Presentation

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Female%20Reproductive%20system

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Chapter 12 - 2 Female Reproductive system OVARY The ovaries are the _____ of the female. 2 almond-shaped glands just caudal to each kidney (L. ovary is the _____). – PowerPoint PPT presentation

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Title: Female%20Reproductive%20system


1
Chapter 12 - 2
  • Female Reproductive system

2
OVARY
  • The ovaries are the _______ of the female.
  • 2 almond-shaped glands just caudal to each kidney
    (L. ovary is the _________).
  • The size varies between species.
  • Female reproductive cells are called __________.
  • When an ovum is mature, it is OVULATED by the
    ovary and caught by the oviduct.
  • Formed by epithelial cells
  • Network of connective tissue where the
  • follicles are embedded, and these
  • contain the ova.

3
OVARY - FUNCTION
  • Ovulation
  • Hormonal secretion
  • _______________
  • induces female characteristics and uterine
    preparation.
  • Progesterone
  • prepares the _________ to receive the fertilized
    ovum

4
OVIDUCTS UTERINE (FALLOPIAN) TUBE
The funnel-shaped portion of ovarian-end is
called the __________________________, which has
fingerlike processes called FIMBRIA that catch
the ovulated egg
  • Ducts for the ova
  • Fertilization usually takes place in the oviduct
  • There is one oviduct for each ovary
  • One end is attached to the uterine horn and the
    other end is adjacent to the ovary (not attached)

5
UTERUS
  • Metra, hystero
  • Thick-walled hollow organ that lies ventral to
    colon, dorsal to bladder
  • Composed of the uterine body,__________ , and
    uterine horns

6
PYOMETRA
7
UTERUS
  • 3 layered wall
  • ________ endometrium,
  • middle ______________
  • outer perimetrium
  • continuous with peritoneum ______________________
    ____________________

8
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9
UTERUS - FUNCTION
  • Prepares for the _____________ of the fetus
  • Develops specialized structures for attachment of
    placenta
  • Produces uterine milk to nourish the embryo
    before implantation
  • Maintains and supports developing fetus
  • _____________ to move fetus into birth canal

10
CERVIX (neck)
  • Composed of smooth muscle arranged in a ring like
    structure called a ______________
  • It prevents foreign bodies from entering the
    uterus during gestation
  • _________________
  • During estrus it relaxes to allow sperm to enter.

11
CERVIX
VAGINA
12
VAGINA
  • Caudal to cervix, cranial to vulva
  • Elastic tube of smooth muscle
  • FUNCTION
  • Place for penis to insert for copulation
  • Receives semen,
  • Passage of _________________
  • Birth canal for neonate

Oviduct
Ovary
Uterine Horn
Uterine Body
Cervix
Vagina
Urethral opening
Clitoris
Vulva
13
VULVA
  • Lips of the vagina
  • Located ventral to anus
  • _______________ organ of erectile tissue
  • and stimulation located on the ventral vulva
  • Urethra is located where the vagina and vulva
    join
  • Consists of the vaginal orifice, vestibular
    glands, clitoris, hymen, and the urethral orifice

14
MAMMARY GLANDS
  • Milk-producing structures located along the
    ventral surface of litter-bearing animals
  • Animals used for milk production glands are
    located in _____________ region with 2-4 teats
  • Made of fatty and connective tissue with
    milk-secreting cells (alveoli) around a duct
  • FUNCTION produce milk for the feeding of the
    neonate or to be sold for human consumption
  • __________________stimulates milk production,
    while OXYTOCIN stimulates ________________

15
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16
ESTROUS CYCLE
  • ESTROUS reoccurring set of physiological and
    behavioral changes that take place from one
    period of ____________ to another
  • Onset is at puberty and continues for the
    animals life (no menopause for estrous cycle)
  • Controlled by hormones from the ovaries and the
    pituitary gland
  • __________________________________________________
    ________________________

17
ESTROUS CYCLE
  • POLYESTRUS, meaning that they
  • have multiple cycles of estrus throughout the
    year.
  • _____________________________ animals have
    multiple estrus cycles only during certain
    seasons of the year.
  • Horses and cats cycle during periods of
    ___________ daylight
  • ____________________ cycle during periods of
    decreased daylight.

18
ESTROUS CYCLE
  • Diestrous _____________
  • INDUCED OVULATORS
  • _____________, rabbits, ferrets
  • llamas, minks

19
OVULATION
  • Ova within the follicles in the ovaries begin to
    develop -gt they reach ripened follicle size
    ___________ follicle -gt One or more of the
    graafian follicles rupture -gt ovum is expelled
    from ovary into the ___________________

20
HORMONE CHANGES
21
ESTROUS CYCLE
  • Proestrus leading to estrus
  • Estrus MATING
  • Metestrus
  • Diestrus
  • Anestrus time when no reproductive event

22
PROESTRUS
  • The ovary develops follicles
  • Pituitary gland -gt ____-gt
  • stimulates follicles in
  • ovary -gt____________
  • prepares the body for pregnancy
  • Teasing but does
  • not allow to ___________

23
ESTRUS
  • HEAT
  • Period of sexual desire
  • Surge of estrogen -gt surge of ____________
  • Developed follicles ovulate, or rupture -gt
    release ovum ___________________

24
METESTRUS
  • Period after desire
  • The ruptured follicle becomes a CORPUS LUTEUM (
    ____________ ), which secretes
    ___________________
  • Prepares an animals uterus for pregnancy
  • Inhibits follicular development.

25
DIESTRUS PREGNANT
  • Period between estrus periods when the animal
    does not copulate
  • The CL is at its maximal size and has its maximal
    effect
  • If the animal is pregnant, the body continues to
    prepare itself for the ____________________
  • The CL continues to produce progesterone, and
    prevents further ____________ cycles until after
    the fetus is born

26
DIESTRUS NOT PREGNANT
  • The CL decreases in size and becomes a
    ___________________________
  • decreases the amount of progesterone and allows
    the cycle to continue
  • Diestrus -gt pregnancy,
  • false pregnancy, anestrus,
  • proestrous

27
ANESTRUS
  • Not present in all animals
  • ____________dont have this
  • stage
  • Copulation does not occur and there is no ovarian
    activity
  • Long dogs
  • Seasonally polyestrous in anestrus between
    seasons sheep, cat

28
PREGNANCY
  • Period between conception and parturition
  • After fertilization occurs, the cells of the
    _______________ begin to divide as it travels to
    the uterus
  • There it will attach to the endometrium
    (________________) and develop a
    _________________ (connection of the fetus to the
    mother by way of an umbilical cord to exchange
    nutrients, oxygen, antibodies, and waste
    products)
  • After implantation, the embryo becomes
    a___________

29
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30
GESTATION PERIOD
  • HORSE 336
  • COW _______________
  • GOAT/SHEEP 150
  • PIG 114
  • DOG/CAT 63

31
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