Term
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Definition
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Term
| cleavage that results in cells that maintain the ability to develop into a complete organism |
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Definition
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Term
| identical twins are a result of _____ cleavage |
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Definition
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Term
| ___ ___ results in cells whose future differentiation pathways are determined at an early developmental stage |
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Definition
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Term
| specialization of cells that occurs during development |
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Definition
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Term
| first complete cleavage occurs |
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Definition
| 32 hours after fertilization |
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Term
| second complete cleavage occurs |
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Definition
| 60 hours after fertilization |
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Term
| third complete cleavage occurs |
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Definition
| 72 hours after ferilization |
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Term
| 8-celled embryo reaches the uterus after |
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Definition
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Term
| solid ball of embryonic cells |
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Definition
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Term
| when the morula develops and fluid-filled cavity |
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Definition
| blastulation--creates bastocoel |
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Term
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Definition
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Term
| embryo implants in the uterine wall during |
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Definition
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Term
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Definition
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Term
| transformation of the single cell layer of blastula into a three-layered structure called |
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Definition
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Term
| cavity of gastrula is called the |
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Definition
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Term
| archenteron develops into the |
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Definition
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Term
| opening of the archenteron is the |
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Definition
| blastopore (site of the future anus) |
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Term
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Definition
| epidermis, eyes, nervous system, inner ear (attract-o-derm) |
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Term
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Definition
| lining of digestive tract, lungs, liver, pancreas "endernal organs" |
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Term
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Definition
| musculoskeletal system, circulatory system,goands, kidneys "means-o-derm" |
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Term
| influence of a specific group of cells on the differentiation of another group of cells |
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Definition
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Term
| where fetal gas exchange occurs |
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Definition
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Term
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Definition
| major organs begin to develop, heart beats at 22 days, cartilagious skeleton into bone, |
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Term
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Definition
| tremendous amount of growing, begins to move, face looks human, toes and fingers |
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Term
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Definition
| rapid growth, brain development, becomes less active bc no room |
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Term
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Definition
| morula-->blastula-->implantation-->gastrula-->mesoderm-->neurulation-->umbilical cord-->birth-->closing of ductus venosus |
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