PHS 3341 Chapter Notes - Chapter 17.4: Granulosa Cell, Oocyte, Oogonium
Document Summary
Vaginal fluid is the first indicator of sexual arousal main lubricant. Bartholin"s gland another source of lubrication (equivalent to. Tenting effect uterus raises upwards, lifting the cervix and enlarging the: secreting estrogen breast development, ova maturation and release, secreting progesterone produces environment for nourishing a. Ovaries are the primary reproductive organs having 2 functions: upper part of vagina to create space for ejaculate deposit developing embryo, produces milk bulbourethral gland in males: ova (oogenesis) The steps of gametogenesis (oogenesis takes 11-50 years) Oogonia divide and give rise to 6-7million oogonia by the 5th month of gestation, but at birth only about 2 million left, any unused killed by apoptosis. Primary oocytes (46c) and remain in meiotic arrest for years before they are ready for ovulation. Primary oocyte + layer of granulosa cells = primordial follicle. Granulosa cells become cuboidal and follicle now called primary follicles. Follicle has 2 fates: 1) atresia degenerates to form scar tissue.
