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Female reproductive system - Coggle Diagram
Female reproductive system
Organs
2 x Ovaries
Uterus: environment for fertilized egg
Vagina: muscular hollow tube inside and out
Mammary glands: produce milk
Ligaments
Ovarian ligaments: tethers ovary to pelvis
Broad ligament: attaches uterus to pelvis
Tubes
Uterine tube: for to travel from ovary to uterus
Fimbrilae: fingerlike projections that guide oocyte from ovary within uterine tubes
Uterine tube (3 sections)
Infundibulum: close to ovary, funnel shape, opens to pelvic cavity
Ambula: central region, site of fertilisation
Isthmus: narrowest region, site of sperm maturation
Uterine tubes are simple columnar epithelium, cilia and secretary cells, smooth muscle for peristalsis
Uterus (3 regions)
Fundus region: connects to uterine tubes
Body: central region
Cervix: region connects to vagina
Uterus consists of three layers
Myometrium (3 layers of smooth muscle)
Contract during childbirth due to oxcytocin
Endometrium
Simple columnar epithelium with underlying CT, 2 layers:
Stratum functionalist: functional layer, grows during uterine cycle and sheds during menstruations
Stratum Basalis: dense CT, gives rise to new functionalis
Perimetrium
Outer layer, serosa
Cervix
Contains mucous glands, can be watery or viscous
Vagina
10cm fibromuscular canal
stratified squamous non-keratinized epithelium
Glands produce glycogen
Ovaries
Dense CT/ 2 regions
Cortex : outer, has oocytes + follicles, dense CT, where folliculogenesis and oogenesis takes place
Medulla: central, blood and nerves, loose CT
Folliculargenesis
Primary follicle: primary oocyte + 1-2 layers of cuboidal cells
Secondary follicle: enlarged oocyte, multiple cell layers, multiple small fluid-filled spaces develop between follicle cells
Tertiary follicle: mature, single large fluid filled space, oocyte surrounded by specialized follicular cells (granulosa cells)
Ovulation: release of oocyte, granulosa cells stay with released oocyte
Corpus leuteum: glandular structure left behind in ovary after ovulation, secrete estrogen and progesterone
Corpus albicans: fertilization doesn't occur and leuteum terns into albicans which is scar tissue
Oogenesis
Oogonium, Primary oocyte, (Meiosis 1) Secondary oocyte/polar body, (fertilization, meiosis 2) Ovum/polar body
Reproductive cycle
Ovarian cycle
Pre-ovulatory:
Ovulatory:
Post ovulatory
Uterine cycle