Please enable JavaScript.

Coggle requires JavaScript to display documents.

PHYSIOLOGY OF THE MENSTRUAL CYCLE., MENOPAUSE, AMENORRHEA, PHYSIOLOGY OF…

- - - - The corpus luteum and the endometrium are prepared for fertilized ovum implantation.
      - Endometrium slows down for endometrial proliferation.
      - Progesterone is dorminant in this phase.
      - Fertilized ovum is implanted within the endometrium if pregnancy occurs.
      - Occurs from day 14 to day 28 of the cycle.
  - - - The endometrial layer of the uterus thickens.
      - Primordial follicle matures to a graafian follicle
        then later becames a mature follicle.
      - Oestrogen increases providing negative feedback
        the interior pituitary gland.
      - This phase also create an environment for the sperm.
      - Occurs from day 0 to day 14 of the menstrual cycle.
- - - - Severe menstrual pain
      - Jdhdue
    - - It's the absence of menstrual cycle for about 90 days.
      - Usually caused by breastfeeding, eating disorders, stress and pregnancy.
- - - - CORONA RADIATA
        
        Is the layer around the oocyte that is penetrated by sperms before fertilization.
      - CORTICAL REACTION
        
        the detach of cortisol granules from plasma membrane create a membrane preventing the penetration of the sperm.
      - CAPACITATION
        
        Process whereby the sperm is prepared for fertilization in thr female reproductive tract.
      - FERTILIZATION MEMBRANE
        
        It's the barrier that is impenetrable coating a nascent zygote.
      - ACROSOMAL REACTION
        
        Is the release of digestive enzymes enabling them to warren through the corona radiata and penetrate the oocyte for fertilization.
      - POLYSPEERMY
        
        Occurs when the oocyte is penetrated by many sperms.
      - ACROSOME
        
        Has lysosomal enzymes capable of digesting the layers of thr oocyte.
      - ZONA PELLUCIDA
        
        Glycoprotein membrane coating the oocyte.
        Needs to be penetrated before fertilization
      - ZYGOTE
        
        A fertilized egg.
    - - TRANSIT OF
        SPERMS
        
        Sperm encounters the oocyte, fluids in the reproductive tract arrange sperm for fertilization.
        
        Sperms survive about 3-5 days in the uterine tube.
        
        During ejaculation sperms races into thr tubes of the uterine.
      - SPERM AND OOCYTE
        
        The oocyte encounters the sperm that survived. Sperm penetrates the 2 protective layers and then binds with the zona pellucide's receptors.
        
        Digestive enzymes are released by acrosome which helps the sperm reach the oocyte.
        
        On the plasma membrane of the oocyte the sperms binds with the sperm binding receptors.
        
        Sperm's plasma membrane then fuse with the plasma membrane of the oocyte and the sperm enters thr oocyte interior.
    - - Occurs when an occyt and sperm combine.
      - the reproductive cells are haploid with genetic material important for forming a human being
- - - - After fertilization trophoblast cells differentiate into syncytiotrophoblast and cytotrophoblast.