Nursing IV Test I
Terms
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- Femal Reproductive Cycle
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Two Cycles:
Ovarian
Endometrial - Ovarian Cycle
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Three phases:
Follicular
ovualtory
Luteal - Follicular Cycle
- FSH (Follicle Stimulating leads to maturing of several follicles
- Ovulatory Phase
- LH(Lutenizing Hormone)Secretion rises follicle ruptures, releases ovum which is captured by fimbriae of fallopian tube, transport of ovum by muscular contractions (cannot move on its own)
- Luteal Phase
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Collaspsed follicle become Corpus Luteum (yellow body); secretes estrogen and progesterone to prepare endometrium until placenta tales over (6-8 wks)
*No fertiliztion corpus lutei, regresses - Endometrial cycle
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Proliferative phase:
Endometrium- under influence - Proliferative phase
- Endometrium- under influence of estrogen from maturing ovarian follicles
- Secretory Phase
- endometrium secretes glycogen, protei, lipids, and minerals to nourish the ovum
- Menstrual phase
- No fertilization, corpus luteum regtesses, estrogen and progestrone fall, endometrium ishcemic and necrotic, dies, necrotic areas seperate leading to menstrual flow
- Prefertilization
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Fatcs:
Sperm (24-72hrs)
Ovum (24hrs)
Transportaion: seminal fluid coagulates upon entry, sperm transported by uteine contraction and tail - Fetetilization
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Ampulla: outer 1/3 of tubes Zona reaction: membranes of ovum harden
cell membranes of sperm and ovum fuses, breakdown
23+23=46
Zygote by 4th day - Cell Multiplication
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Clevage: increases number of cells,not size
Morula: solid ball 12-16 cells
Blastocyst: sac of cell inner nass (becomes aminon and fetus) outer mass (chorion and placenta) - Implantation
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Blastocyst drifts for 2-4 days before beginning implantation
*Endometrium in secretory phase