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Quickening
By: Katherine Brind'Amour
| Published: Oct 30, 2007
Quickening, the point at which a pregnant woman can first feel the movements of the growing embryo or fetus, has long been considered a pivotal…
Human DevelopmentethicsReproductionFetusAbortion
Chemical Induction
By: Adam R. Navis
| Published: Oct 30, 2007
Research in chemical induction seeks to identify the compound or compounds responsible for differentiation in a developing embryo. Soren Lovtrup…
Cell differentiationEmbryosDevelopmental BiologyNotochordWaddington, C. H. (Conrad Hal), 1905-1975
Syncytial Theory
By: Adam R. Navis
| Published: Oct 30, 2007
The syncytial theory of neural development was proposed by Victor Hensen in 1864 to explain the growth and differentiation of the nervous system.…
Hensen, Victor, 1835-1924Nervous SystemNeurons
Epigenetic Landscape
By: Adam R. Navis
| Published: Oct 30, 2007
The epigenetic landscape is a concept representing embryonic development. It was proposed by Conrad Hal Waddington to illustrate the various…
Waddington, C. H. (Conrad Hal), 1905-1975EpigeneticsCell differentiationEmbryologyDevelopmental Biology
Nerve Growth Factor
By: Adam R. Navis
| Published: Oct 30, 2007
Nerve growth factor (NGF) is a signaling protein and growth factor implicated in a wide range of development and maintenance functions. NGF was…
Nerve Growth FactorChicks
"In vitro Experiments on the Effects of Mouse Sarcomas 180 and 37 on the Spinal and Sympathetic Ganglia of the Chick Embryo" (1954), by Rita Levi-Montalcini, Viktor Hamburger, and Hertha Meyer
By: Adam R. Navis
| Published: Oct 30, 2007
"In vitro Experiments on the Effects of Mouse Sarcomas 180 and 37 on the Spinal and Sympathetic Ganglia of the Chick Embryo" were experiments…
Levi-Montalcini, RitaChickens--EmbryosHamburger, Viktor, 1900-2001Developmental BiologyEmbryology
"Selective Growth Stimulating Effects of Mouse Sarcoma on the Sensory and Sympathetic Nervous System of the Chick Embryo" (1951), by Rita Levi-Montalcini and Viktor Hamburger
By: Adam R. Navis
| Published: Oct 30, 2007
In "Selective Growth Stimulating Effects of Mouse Sarcoma on the Sensory and Sympathetic Nervous System of the Chick Embryo," Rita Levi-Montalcini…
Chick EmbryoExperimentsChicksMice
Epidermal Growth Factor
By: Adam R. Navis
| Published: Oct 30, 2007
Epidermal growth factor is a signaling molecule that stimulates the growth of epidermal tissues during development and throughout life. Stanley Cohen…
Levi-Montalcini, RitaHamburger, Viktor, 1900-2001EmbryologyEmbryosDevelopmental Biology
"Interspecific Chimeras in Mammals: Successful Production of Live Chimeras Between Mus musculus and Mus caroli" (1980), by Janet Rossant and William I. Frels
By: Nicole Newkirk
| Published: Oct 30, 2007
In 1980 Janet Rossant and William I. Frels published their paper, "Interspecific Chimeras in Mammals: Successful Production of Live Chimeras Between…
ChimeraExperimentsMice
"A Series of Normal Stages in the Development of the Chick Embryo" (1951), by Viktor Hamburger and Howard L. Hamilton
By: Adam R. Navis
| Published: Oct 30, 2007
The developmental stages of the chick embryo were examined by Viktor Hamburger and Howard L. Hamilton in "A Series of Normal Stages in the…
Chick EmbryoExperimentsChicks