Lecture 27: Female Reproductive System

  1. Ovary
    Mesothelium: CUBOIDAL rather than sq
  2. Oocyte
    • Oogonia goes on meiotic division = primary oocyte, arrest at prophase
    • 5th fetal month = all oocytes
  3. Primary follicle
    • oocyte enlarges
    • follicular cells become CUBOIDAL
    • stroma (theca) cells don't penetrate BM (now more prominent)
  4. Secondary (antral) follicle
    • follicular cells->granulosa cells (2 types)
    • Membrana granulosa- wall surrounding antrum, mural granulosa cells
    • Cumulus oophorus- surrounds zona pellucida
    • Theca interna- sinusoidal cap's, C19 steroid androstenedione crosses BM for conversion to estradiol by granulosa cells
    • Theca externa- thin myoid-like contractile layer
  5. Graafian follicle
    • mature follicle
    • Cumulus oophorus becomes free floating
    • resumes meiosis, arrested at metaphase as secondary oocyte
    • Secondary oocyte, zona pellucida, cumulus oophorus, follicular fluid release
    • Membrana granulosa=>corpus luteum
  6. Atresia
    • fate of most follicles
    • small and large atretic follicle
    • hyalinization of BM= glassy membrane
  7. Corpus luteum
    • forms from membrana granulosa
    • endocrine gland
    • granulosa cells-> granulosa lutein cells
    • theca interna-> theca lutein cells
    • W/o preg--> turns into corpus albicans
  8. Oviduct (Fallpian tube)
    • 1. Infundibulum- high amt ciliated cells
    • 2. Ampulla- longest seg, site of fertilization, high amt ciliated cells & mucosal folds, muscularis is THIN (2 layers, IC & OL)
    • 3. Isthmus- narrowest seg, low folds and ciliated cells, thicker muscularis
    • 4. Intramural- pierces uterine wall, opening to uterine lumen, little folding, mucularis THICKEST
Card Set
Lecture 27: Female Reproductive System
Female Reproductive System