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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!




Pregnancy Timeline

Prescription Drug Effects on Pregnancy

Pregnancy Calculator

Female Reproductive System

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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.
Content protected under a Creative Commons License.

No dirivative works may be made or used for commercial purposes.

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Pregnancy Timeline by SemestersFetal 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 HemispheresFemale Reproductive SystemEnd of Embryonic PeriodEnd of Embryonic PeriodFirst Thin Layer of Skin AppearsThird TrimesterSecond TrimesterFirst TrimesterFertilizationDevelopmental Timeline
Click weeks 0 - 40 and follow fetal growth
Google Search artcles published since 2007
August 5, 2011--------News Archive

Prenatal Stress Linked with Accelerated Cell Aging
Research points to critical role of maternal health and well-being during pregnancy.

Mutation Linked With the Absence of Fingerprints
Rare genetic mutations prove useful as a tool for investigating unknown aspects of our biology.

August 4, 2011--------News Archive

Pregnancy Diet Decreases Baby's Breast Cancer Risk
Era of Hope conference to feature compelling research examining benefits to daughters based on mother's diet in pregnancy.

Quick, Low-Cost Tests For Child Development Delays
Study confirms accuracy of developmental screening tests that can be administered by family physicians.

August 3, 2011--------News Archive

Helping Children Learn to Understand Numbers
It's all in the way we speak to them.

Pilot Study Suggests New Approach for Preeclampsia
Apheresis-based treatment may prolong pregnancy.

The Dark Side of Oxytocin
The "cuddle chemical" can also stir emotions like envy and gloating.

August 2, 2011--------News Archive

New Light on the Mechanisms of Brain Development
Study has implications for understanding brain disorders rooted in development, such as autism.

Why Autistic Individuals Confuse Pronouns
Impaired communication between areas of the brain causes autism and disrupts concept of 'self'.

August 1, 2011--------News Archive

Fast Ripples Mark Brain Seizure Activity in Children
Resection surgery of brain regions with fast ripples may improve seizure outcome.

Caloric Restriction and Female Infertility
Scientists tested the effects of caloric restriction on eggs produced by aging mice, and found they were better quality than age-matched mice fed a normal diet.

70 Percent of 8-Month-Old Babies Eat Too Much Salt
Due to being fed salty and processed foods like yeast extract, gravy, baked beans and tinned spaghetti, United Kingdom infants have too much salt in their bodies.

WHO Child Growth Charts

B.C. researchers find quick, low-cost tests can accurately identify childhood developmental delays.

BC Children's Hospital and University of British Columbia (UBC) researchers have found that two existing screening tests are accurate in diagnosing development delays in children and could be incorporated in a busy family practice setting with relative ease.

Parents can complete the Ages and Stages Questionnaire (ASQ) or the Parents' Evaluation of Developmental Status (PEDS) at home or in the family physician's office, with the physician scoring the tests and providing results in a matter of minutes.

"Only 30 per cent of children with developmental delays are identified prior to school age – whether that's social, physical or learning – and most experts would agree that we should be identifying those delays earlier through regular screening," says Dr. Marjolaine Limbos, principal investigator and a psychologist at BC Children's Hospital, an agency of the Provincial Health Services Authority.

However, researchers believe the tests aren't routinely administered by Canadian family physicians because they haven't been validated (tested for accuracy) in a primary care setting (physician's office) and because of physicians' concerns about having enough time to administer such tests in a busy practice.

"Right now, the majority of family physicians do the eyeball test," says co-author Dr. David Joyce, a clinical assistant professor in UBC's Department of Family Practice and a Vancouver family physician.

"But research shows that is not very accurate, and kids are falling through the cracks. It's critical to catch and treat disabilities early because the longer you leave them, the more intractable they become. The brain becomes more hard-wired, and opportunities for change become narrower."

The results were published recently in the online version of the Journal of Developmental & Behavioral Pediatrics, a leading resource for clinicians, teachers, and researchers involved in pediatric healthcare.

Researchers recruited 334 children between the ages of one and five years old.

Families were recruited from more than 80 physician offices in Ontario. The parents completed both the PEDS and the ASQ tests, and children underwent a full battery of psychological testing to serve as a comparison or gold standard. While both tests had reasonable accuracy in picking up abnormalities, the PEDS had a slightly lower accuracy than the ASQ.

The PEDS, the shorter of the two tests, takes five minutes to complete and is based on a parent's recollection of their child's abilities, with yes or no responses.

The ASQ is a longer test, taking about 15 minutes, and asks parents about their child's ability to perform certain activities, such as throwing a ball to test motor skills. Both the sensitivity and specificity of the ASQ in identifying developmental delays was higher.

"Our research shows that overall, the ASQ and, to a lesser extent, the PEDS are accurate and can be administered effectively and at low cost," says Dr. Limbos.

"The study results will hopefully provide physicians with the confidence that the tests can be incorporated into a busy physician practice with relatively little demand on staff time, with the results being easy to interpret and validate."

Children who are identified as having a developmental disability through the screening tests would then be referred to a specialist for further testing and treatment.

The findings are a part of a larger study the researchers are conducting to examine the accuracy of screening tests used in primary care and the factors related to physician screening for developmental delay.