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| when egg and sperm cells fuse; nuclei of sperm and ovum fuse, forming a diploid nucleus |
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| imbedding of the blastocyst in the thickened endometrium that lines the uterus |
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| the developing organism from beginning of cleavage until the first body structures appear |
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| develops inside uterus; surrounds embryo. enables nutrients/waste to be transferred |
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| a hormone secreted that causes the muscles of the uterus to begin contracting |
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| thickens and maintains uterine lining; stimulates growth and development of blood supply; prepares you for pregnancy |
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permanent stopping of menstrual cycle
-production of estrogen drops, ovulation and menstruation stops |
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| Menstruation; Follicular Phase; Ovulation; Luteal Phase |
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| secrete sugar mixture that provides energy for sperm |
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| secretes alkaline fluid that protects sperm from female fluids |
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| secretes fluid that lubricates and cleanses urethra |
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| sperm is ejected by smooth muscle contractions |
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sac that holds the testes
-positioned outside abdomen
-allows sperm to develop in a cooler environment than body temp |
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| where immature sperm mature, grow tails |
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| tube that stores some sperm up to 3 months |
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male sex cells
3 parts: head-DNA
midsection-energy
tail-swim |
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Term
| Oviducts (Fallopian Tubes) |
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Definition
transport eggs from ovary to uterus
*fertilization happens here* |
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where fertilized egg develops
-has 2 layers--1 muscular, 1 thin lining |
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passageway from uterus to vagina
-muscles control this |
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| birth canal; passage to the outside |
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| cluster of cells that surround an egg |
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