Female reproductive system!

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  • Created by: Izzy2807
  • Created on: 06-02-20 17:51
What is the function of the ovaries?
To procude oocytes and hormones (oestrogen, progesterone, relaxin and inhibin).
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What are the uterine tubes and uterus?
Tubes: where the secondary oocytes travel to the uterus (made of smooth muscle and ciliated epithelium). Uterus: site of fertilised ovum implantation and fetal development.
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What are the 3 parts of the uterine tube?
Infundibulum: just entering the ovary. Ampulla: thick part of tube, curves around ovary. Isthmus: entering uterus lumen (narrow).
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What are the 4 ligaments of the uterus?
Ovarian ligament (connects ovary to uterus), broad ligament (flat sheet of peritoneum, secures lymph/art. system), suspensory ovarian ligament (ovary to abdominal wall), round ligament (ovary to labia majora)
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What are the 3 layers of the wall of uterus?
Endometrium (inside), myometrium (middle, consists of smooth muscle) and perimetrium
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What cells make up the outside of an ovary?
Germinal epithelium
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What are the 'sacs' that contain oocytes called?
Follicles! Follicle cells secrete oestrogen when directed by FSH and LH.
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What is the general pathway of a follicle/oocyte?
Primary oocyte, secondary oocyte, vesicular/graffian follicle, OVULATION, corpus luteum!
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What are the 2 layers of the endometrium?
Functional layer: cyclic changes in response to hormones, sheds during menstruation. Basal layer: CONSTANT, acts as functional layer after menstruation, no hormone response.
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What happens to the secondary oocyte when it's ovulated?
Captured by fimbrae, cilia of UT beat to create current in peritoneal fluid (towards ampulla), cilia beat and SM contracts to move oocyte towards ithmus
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What are the first few stages of the ovarian cycle?
Follicular phase: Hypothalamus releases GnRH, travels to Ant.Pit.Gland, secretes FSH and LH. FSH acts on follicles, stimulates oestrogen production.
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After follicle stimulation, what is the next stage?
Increase in oestrogen acts as PosFB for GnRH, luteal surge = ovulation (at day 14).
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After ovulation, what happens to the follicle?
Follicle becomes corpus luteum, secretes oestrogen and LOTS of progesterone...helps rebuild the endometrium (oestrogens produce endo.progest.receptors!). Prog/oest now NegFB for GnRH
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What happens to the CL if there is pregnancy/isn't?
Pregnancy: developing zygote produces HCG, maintains CL. CL produces progest. and oest. for placental development and endometrium thickness, then placenta takes over. No pregnancy? Decrease in LH, degrading of CL, decrease in progesterone, MENSTRUAT.
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What happens in the uterine cycle?
Proliferative (4-14): increase in oest/progest from follicles, endometrium thickens, spiral arteries form, many secretory glands. Secretory: CL secretes prog/oest, increase in endo thickness/vasularity. MENST: degrading of CL, less progest., shedding
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What is an ectopic pregnancy?
When a zygote implants into a place other than the uterus (e.g. uterine tubes). May cause internal bleeding and damage to uterine tubes.
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Card 2

Front

What are the uterine tubes and uterus?

Back

Tubes: where the secondary oocytes travel to the uterus (made of smooth muscle and ciliated epithelium). Uterus: site of fertilised ovum implantation and fetal development.

Card 3

Front

What are the 3 parts of the uterine tube?

Back

Preview of the front of card 3

Card 4

Front

What are the 4 ligaments of the uterus?

Back

Preview of the front of card 4

Card 5

Front

What are the 3 layers of the wall of uterus?

Back

Preview of the front of card 5
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