Term
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Definition
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Term
| – Fertilization occurs in |
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Definition
| Fallopian tube 12-24 hours after ovulation |
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Term
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Definition
| corona radiata and zona pellucida |
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Term
| enzymes from acrosome of sperm |
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Definition
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Term
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Definition
| spermatozoon penetrates secondary oocyte |
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Term
| secondary oocyte completes |
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Definition
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Term
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Definition
| union of male and female pronucleus |
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Term
| • Development during pregnancy part 1 |
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Definition
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Term
| – Early mitotic cleavage divisons of zygote forms |
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Definition
| solid ball of cells called morula |
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Term
| – By 4 1/2 to 5 days morula has developed into |
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Definition
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Term
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Definition
| hollow ball of cells with inner cell mass at one end |
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Term
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Definition
| - outer covering of cells (Outer even covering) |
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Term
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Definition
| - inner cell mass (Cells trying to get in) (Where baby develops) |
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Term
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Definition
| - internal fluid-filled cavity (Inner portion) |
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Term
| • Development during pregnancy part 2 |
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Definition
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Term
| – About 6 days after fertilization, |
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Definition
| blastocyst implants in wall of endometrium (endometrium in secretory phase[dominated by the release of progesterone]) |
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Term
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Definition
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Term
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Definition
| that help the blastocyst penetrate uterine lining and become buried in endometrium |
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Term
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Definition
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Term
| – Blastocyst develops into |
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Definition
| gastrula stage with 3 germ layers (gastrulation stage-where we are seeing differentiation of layers) |
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Term
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Definition
| amnion and external features. helps regulate body temperature. Helps make skin, nervous system, eyes, ears. |
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Term
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Definition
| yolk sac and internal features. Systems develop respiratory and digestive. |
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Term
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Definition
| - line blastocele and form middle structures. (in between Trophoblast and blastocele) Forms muscles and bones. Cardiovascular comes from mesoderm. |
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Term
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Definition
| fluid-filled sac surrounding embryo; serves as shock absorber and Yolk sac - early site of blood formation |
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Term
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Definition
| early site of blood formation |
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Term
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Definition
| - small, vascularized outpouching of yolk sac; serves as early site of blood formation; later forms umbilical cord |
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Term
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Definition
| derives from trophoblast and mesoderm; becomes principal embryonic part of placenta |
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Term
| – Neurulation and organ system formation |
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Definition
| formation of neural tube and rest of organ systems develops over two month period of embryonic stage (Develop brain and spinal cord) |
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Term
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Definition
| after 2 months, organs are formed and fetus grows rapidly and takes on human appearance |
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Term
| Name of baby once it reaches 2 months |
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Definition
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Term
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Definition
| passage of hereditary traits from one generation to another (1199) |
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Term
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Definition
| – Genes coding for same trait and at same chromosomal location |
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Term
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Definition
| permanent heritable change in a gene |
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Term
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Definition
| how genetic makeup is expressed (outward appearance); heterozygous individuals are carriers |
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Term
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Definition
| - genetic makeup of an individual |
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Term
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Definition
| allele that dominates or masks presence of another allele (One that its expressed, it will overcome other traits) |
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Term
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Definition
| allele whose presence is masked |
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Term
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Definition
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Term
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Definition
| one dominant and one recessive allele |
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Term
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Definition
| heterozygous condition is different than dominant or recessive traits |
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