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Walter Edward Dandy (1886-1946)
By: Alexandra Bohnenberger
| Published: Mar 02, 2017
Walter Edward Dandy studied abnormalities in the developing human brain in the United States in the twentieth century. He collaborated with…
HydrocephalusBrain--Ventricles--RadiographyVentriculography, CerebralDandy-Walker SyndromeDandy-Walker Malformation
Dandy-Walker Syndrome
By: Alexandra Bohnenberger
| Published: Mar 02, 2017
Dandy-Walker Syndrome is a congenital brain defect in humans characterized by malformations to the cerebellum, the part of the brain that controls…
Dandy, Walter Edward, 1886-1946Walker, A. Earl (Arthur Earl), 1907-1995HydrocephalusBirth DefectsDandy-Walker Syndrome
Human Evolution Inferred from Tooth Growth and Development
By: Kate MacCord
| Published: Mar 28, 2013
To study human evolution, researchers sometimes use microstructures found in human teeth and their knowledge of the processes by which those…
EvolutionteethDental EnamelFossilsHuman Evolution
The Process of Implantation of Embryos in Primates
By: Justin M. Wolter
| Published: Mar 21, 2013
Implantation is a process in which a developing embryo, moving as a blastocyst through a uterus, makes contact with the uterine wall and remains…
FetusPregnancyEmbryologyDevelopmental BiologyEmbryos
Biological Clocks and the Formation of Human Tooth Enamel
By: Kate MacCord
| Published: Jan 31, 2013
Tooth enamel contains relics of its formation process, in the form of microstructures, which indicate the incremental way in which it forms. These…
EvolutionteethDental EnamelHuman EvolutionAnatomy
Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Gene
By: Kristina Winikates
| Published: Jan 01, 2012
The Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene was identified in 1989 by geneticist Lap-Chee Tsui and his research team as the…
Cystic FibrosisReproductionCongenital DisordersHuman Development
Multi-Fetal Pregnancy
By: Corinne DeRuiter
| Published: Jan 01, 2012
In humans, multi-fetal pregnancy occurs when a mother carries more than one fetus during the pregnancy. The most common multi-fetal pregnancy is…
ReproductionFetusHuman Development
2D Obstetric Ultrasound
By: Sean Cohmer
| Published: Jan 01, 2012
The development of the obstetric ultrasound has allowed physicians and embryologists to obtain a clear picture of the developing human embryo and…
TechnologyUltrasonographyReproductionmedicineHuman Development
Twin-to-Twin Transfusion Syndrome
By: Corinne DeRuiter
| Published: Aug 16, 2011
Twin-to-Twin Transfusion Syndrome (TTTS) is a rare placental disease that can occur at any time during pregnancy involving identical twins. TTTS…
Fetofetal TransfusionReproductionFetusCongenital DisordersHuman Development
Parasitic Twins
By: Corinne DeRuiter
| Published: Aug 16, 2011
Parasitic twins, a specific type of conjoined twins, occurs when one twin ceases development during gestation and becomes vestigial to the fully…
Twins, ConjoinedReproductionFetusCongenital DisordersHuman Development