Term
| reproductive cycle occurs every |
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Definition
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Term
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Definition
| -production of ovum, estrogen, progesterone |
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Term
| uterine/endometrial cycle |
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Definition
| prepares for implantation |
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Term
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Definition
-hypothalamus secretes FSH releasing factor
-anterior pituitary secretes FSH
-FSH stimulates follicle maturation
-follice produces estrogen
-estrogen causes endometrium to thicken |
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Term
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Definition
-anterior pituitary secretes LH
-LH stimulates ovulation and development to corpus luteum
-corpus luteum secretes estrogen/progesterone
-estrogen/progesterone cause endometrium to further develop |
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Term
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Definition
-corpus luteum degenerates
-concentration of hormones
-blood vessels of uterine lining constrict
-stratum functionale of endometrium sloughs away (menstrual flow) |
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Term
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Definition
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Term
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Definition
-fertilized egg travels to uterus
-implantation occurs
-HCG is produced by fetal membranes
-HCG prevents degeneration of corpus luteum
-corpus luteum maintain endometrium
-placenta develops and takes over production of hormones for corpus luteum (which degenerates) |
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Term
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Definition
-sperm travel through vagina and enter cervix of uterus
-300-500 million killed by acidic environment
-sperm pass through uterus and enter fallopian tubes with aid of contraction of myometrium
-fertilization occurs in fallopian tubes |
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Term
| ovum only capable of being fertilized |
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Definition
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Term
| sperm can remain viable in reproductive tract for |
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Definition
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Term
| implantation/placenta development (1-4) |
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Definition
-fertilized ovum takes about 6 days to reach uterus
-implantation occurs in posterior wall of body of uterus
-developing embryo burrows in endometrium of uterus until it is completely enclosed in a layer of maternal tissue
-placenta develops from maternal and fetal tissue |
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Term
| implantation/placenta development (5-8) |
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Definition
-villi penetrate the endometrium until they are surrounded by pools of maternal blood which comes from uterine vessels
-internal iliac arteries of fetus give off two umbilical arteries which travel through umbilical cord and penetrate these villi
-oxygen and other nutrients diffuse from maternal blood into fetal blood (no mixing)
-fetal blood returned through umbilical vein |
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