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Lecture 22 and 23 Female Reproductive Anatomy-1

Lecture 22 and 23 Female Reproductive Anatomy-1 -...

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Anatomy of the Female  Reproductive System Angela Black, DVM, PhD Department of Animal and Avian Sciences University of Maryland, College Park
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The Female Organs of Reproduction two ovaries uterine tubes (oviducts) uterus uterine horns cervix vagina, vestibule external genitalia
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Te rm ino lo g y Paro us  – fe m ale  that has  g ive n birth Nulliparo us  – fe m ale  who  has  no t g ive n birth Uniparo us  – g ive n birth o nc e Multiparo us  – g ive n birth m o re  than o nc e Mo no to c o us  – s ing le  o ffs pring /g e s tatio n Po lyto c o us  - litte rs
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Ovaries:overview Paired glands found in the lumbar region of the abdominal cavity Serve both endocrine (hormone producing), and cytogenic (cell producing) functions Constantly changing as follicles develop toward the surface. Follicle ruptures at ovulation, releasing the ovum Corpus Hemoragicum and then corpus Luteum form at the ovulation site.
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Ovaries Cytogenic function The ovary is encapsulated in a dense connective tissue capsule, the tunica albuginea The cortex (outer portion) of the ovary consists of dense, irregular connective tissue interspersed with: Follicles (contain developing ova) in various stages of development - Corpora hemorrhagicum-blood filled Corpora luteum – yellow body Corpora albicans – white body
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Ovaries Primary Follicles Graafian follicle - large dominant follicle (smaller ones regress) Oocyte surrounded by single layer of cuboidal epithelium or follicular cells Ovulation involves thinning of tissue layer and changes in follicular fluid pressure
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Ovarian Follicles
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Ovaries Blood vessels rupture & blood fills hole. This
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