Female Reproductive System
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What are the organs of the FRS?
- Duct System
- External Genitalia
What are the parts of the duct system?
- Uterine tubes
What is the anatomy of the ovaries?
Composed of ovarian follicles, made up of the oocyte and follicular cells
What are the Ovarian follice stages?
- Primary - immature oocyte
- Graafian - growing follicle with a maturing oocyte
- Ovulation - when the egg is mature, the follicle ruptures
- Ruptured follicle is transformed into a corpeus luteum
What supports the ovaries?
- Suspensory ligaments
- Ovarian ligaments - attach to uterus
- Broad ligament
What do the uterine tubes do?
- Receives ovulated egg
- Provide site for fertilization
- Is not physically attached to the ovary
How does the uterine tube function?
- Fimbriae - finger like projections receive oocyte
- Cilia - move oocyte towards uterus (3 - 4) days
- Fertilization occurs inside the uterine tube
What is the uterus/what does it do?
Hollow organ between the bladder and the rectum that receives, retains, and nourishes the fertilized egg.
What supports the uterus?
- Broad ligament - attached to pelvis
- Round ligament - anchored interiorly
- Uterosacral ligaments - anchored posteriorly
What are the regions of the uterus?
- Body - main portion
- Fundus - area where uterine tube inserts
- Cervix - narrow outlet that protrudes into the vagina
How are the walls of the uterus made?
- Endometrium - Innerlayer, lost during menstration, egg is implanted in
- Myometrium - Middle layer of smooth muscle
- Serous layer - Outer visceral peritoneum
What is the vagina?
Birth/Sex canal that extends from cervix to exterior of the body, and sits behind bladder and in front of rectum
What are the parts of the external genitilia?
- Mons pubis - fatty, hairy area
- Labia - majora and minora
- Vestibule - Contains opening of urethra/greater vestibular glands
- Clitoris - Erectile tissue
What is Oogenesis?
- Total supply of eggs present at birth
- Release begins at puberty
- Ends at menopause
- Oocytes are matured in ovarian follicles
What are oogonia?
Female stem cells found in a developing fetus that no longer exist at the time of birth.
What is oogenesis?
- Oocytes inactive until puberty
- FSH causes them to mature
- Meiosis completed only if sperm penetrates
- Creates 2 polar bodies - cells only females have
What are the stages of the menstrual cycle?
- Menses - endometrium is sloughed off
- Proliferative stage - regeneration of functional layer
- Secretory stage - endometrium increases in size and prepares for implantation
What are the mammary glands?
Modified sweat glands that produce milk
What are the parts of the mammary gland?
- Lobes - Internal structures that radiate around nipple
- Alveolar Glands - Clusters of milk producing glands within lobules
- Lactiferous Ducts - Connect alveolar glands to the nipple
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