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Welcome to The Visible Embryo, a comprehensive educational resource on human development from conception to birth.

The Visible Embryo provides visual references for changes in fetal development throughout pregnancy and can be navigated via fetal development or maternal changes.

The National Institutes of Child Health and Human Development awarded Phase I and Phase II Small Business Innovative Research Grants to develop The Visible Embryo. Initally designed to evaluate the internet as a teaching tool for first year medical students, The Visible Embryo is linked to over 600 educational institutions and is viewed by more than ' million visitors each month.


WHO International Clinical Trials Registry Platform
The World Health Organization (WHO) has created a new Web site to help researchers, doctors and patients obtain reliable information on high-quality clinical trials. Now you can go to one website and search all registers to identify clinical trial research underway around the world!



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Disclaimer: The Visible Embryo web site is provided for your general information only. The information contained on this site should not be treated as a substitute for medical, legal or other professional advice. Neither is The Visible Embryo responsible or liable for the contents of any websites of third parties which are listed on this site.
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Pregnancy Timeline by SemestersFemale Reproductive SystemFertilizationThe Appearance of SomitesFirst TrimesterSecond TrimesterThird TrimesterFetal liver is producing blood cellsHead may position into pelvisBrain convolutions beginFull TermWhite fat begins to be madeWhite fat begins to be madeHead may position into pelvisImmune system beginningImmune system beginningPeriod of rapid brain growthBrain convolutions beginLungs begin to produce surfactantSensory brain waves begin to activateSensory brain waves begin to activateInner Ear Bones HardenBone marrow starts making blood cellsBone marrow starts making blood cellsBrown fat surrounds lymphatic systemFetal sexual organs visibleFinger and toe prints appearFinger and toe prints appearHeartbeat can be detectedHeartbeat can be detectedBasic Brain Structure in PlaceThe Appearance of SomitesFirst Detectable Brain WavesA Four Chambered HeartBeginning Cerebral HemispheresEnd of Embryonic PeriodEnd of Embryonic PeriodFirst Thin Layer of Skin AppearsThird TrimesterDevelopmental Timeline
Click weeks 0 - 40 and follow fetal growth
Google Search artcles published since 2007
 
November 10, 2011--------News Archive

Pre-birth Brain Growth Problems Linked to Autism
A small, preliminary study provides direct evidence for possible prenatal causes of autism.

Poor 1st, 3rd Trimester Sleep Linked to Early Births
Improving mother’s sleep habits through early intervention could reduce risk.

November 10, 2011--------News Archive

Possible New Target for Treating Kids' Liver Disease
An unexpected discovery in an often lethal pediatric liver disease may lead to a new therapy for the hard-to-treat condition.

Diagnoses of Autism Spectrum Disorders Vary Widely
Study suggests common diagnostic subcategories like asperger syndrome are flawed are of questionable value.

November 9, 2011--------News Archive

Single Protein Causes Varicose Veins
Scientists have developed a model for studying varicose veins. Their hope is that drugs can be developed to decelerate or even prevent new varicose veins.

"Switching On/Off" of Brain Genes Throughout Life
The “switching on” or expression of specific genes in the human makes each human being unique. The On/Off switching of brain cells continues throughout life.

Balancing Male and Female X Genes
Cells use 'mathematics' to equalize the loss of an X chromosome gene in males.

November 8, 2011--------News Archive

MRI Reveals Injuries in Developing Brain
New research supports the potential of high-field MRI for early identification of tiny brain injuries in the preterm infant.

Epigenetic Signatures of Autism
Analysis reveals overlap between genetic and epigenetic risk maps in autism.

November 7, 2011--------News Archive

"Cat Litter" Disease Alters Brain Chemistry
Infection by the brain parasite Toxoplasma gondii, directly affects the production of dopamine in the brain.

Two Molecules That Kill Lymphoma Cells In Mice
Two molecules have been identified that may be more effective as lymphoma cancer killers than anything currently available on the market.

Why Some Children Became Critically Ill in 2009 Flu
The largest study to date finds that kids co-infected with MRSA had an increased death risk of 8-fold. Flu vaccination is strongly urged!

WHO Child Growth Charts

Poor sleep quality in both early and late pregnancy has been linked to an increased risk of delivering preterm.

A study published in the Nov. 1 issue of the journal Sleep shows a significant risk for preterm birth in women reporting sleep disruptions during their first and third trimesters. The connection remained even after medical risk factors and income levels were taken into account.

"This supports the growing evidence that poor sleep is an important risk factor for preterm birth," said Michele Okun, PhD, assistant professor of psychiatry and psychology at the University of Pittsburgh School of Medicine.

"It likely occurs in the presence of other risk factors, but sleep can be measured easily and quickly during prenatal visits. Simply by assessing a woman's sleep quality, we may be able to identify a risk early in the pregnancy, when there is time to intervene. The data suggest that beneficial outcomes may be possible through modifications in behavior," Okun said.

Sleep quality in the second trimester did not correlate with increased risk. Okun said sleep often improves modestly during this part of pregnancy, although it is unclear why. One explanation might be hormones or other biological pathways playing a role, but there is no data.

Similarly, Okun and her co-authors suggest a biological cause for the increase in preterm births with disrupted sleep. Poor sleep quality has been shown to initiate inflammation, possibly activating the processes associated with childbirth prematurely. Sleep disruption also might do this in combination with stress, a known activator of inflammation.

Okun said more research is needed, but the early results are encouraging – and important.

"The need to reduce adverse pregnancy outcomes remains high," she said. "Despite our advanced society and medical knowledge, we still find a growing number of women having a preterm baby or other adverse outcome."

Read more about sleep and pregnancy at the American Academy of Sleep Medicine's Your Sleep website, http://yoursleep.aasmnet.org/Topic.aspx?id=40.

The monthly, peer-reviewed, scientific journal Sleep is published online by the Associated Professional Sleep Societies LLC, a joint venture of the American Academy of Sleep Medicine and the Sleep Research Society. The AASM is a professional membership society that is the leader in setting standards and promoting excellence in sleep medicine health care, education and research (www.aasmnet.org).

For a copy of the study, "Poor Sleep Quality is Associated with Preterm Birth," or to arrange an interview with an AASM spokesperson, please contact PR Coordinator Doug Dusik at 630-737-9700, ext. 9345, or ddusik@aasmnet.org.

Original article: http://www.eurekalert.org/pub_releases/2011-11/aaos-psq102511.php