Anatomy part two
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21 terms
Terms | Definitions |
|---|---|
 acids | compounds that form hydrogen ions when dissolved in water |
| bases | compounds that reduce the concentration of hydrogen ions in a solution |
| oocytes | immature eggs in ovarian follicles |
| sperm | the male reproductive cell |
| haploid | term used to refer to a cell that contains only a single set of chromosomes and therefore only a single set of genes |
| vas deferens | the duct that transports the sperm from the epididymis to the penis |
| uterus | organ of the female reproductive system in which a fertilized egg can develop |
| testes | The male gonads, which produce sperm and secrete male sex hormones. |
| ovaries | located one on each side of the uterus in the female pelvis, functioning to secrete estrogen and progesterone |
| menarche | the first occurrence of menstruation in a woman |
| menopause | the time of natural cessation of menstruation; also refers to the biological changes a woman experiences as her ability to reproduce declines |
| prenatal | before birth, or during pregnancy, the stage that occurs in the time before birth |
| postnatal | occurring immediately after birth |
| zygote | the fertilized egg; it enters a 2-week period of rapid cell division and develops into an embryo |
| embryo | the developing human organism from about 2 weeks after fertilization through the second month |
| fetus | the developing human organism from 9 weeks after conception to birth. |
| umbilical cord | a cord or funicle connecting the embryo or fetus with the placenta of the mother and transporting nourishment from the mother and wastes from the fetus |
| oxytocin | induces contraction of the uterine muscles during childbirth and causes the mammary glands to eject milk during nursing |
| neonatal period | the first 4 weeks after birth |
| homozygous | an organism that has two identical alleles for a trait |
| heterozygous | a term used to describe a genotype having unlike alleles |
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