Fertilization of the egg with sperm generally occurs during the two weeks following the first day of your last menstrual period.1 The week of pregnancy that you are entering is dated from the first day of your last period. This means that in the first two weeks or so, you are not actually pregnant - your body will be preparing for ovulation as normal.

Video showing normal vagina delivery and child birth

A video showing drainage of a bartholin cyst

Inserting a nasogastric tube

German Video showing examination of the urinary bladder

To record the sequence, Stephan Gordts and Ivo Brosens of the Leuven Institute for Fertility & Embryology in Belgium performed transvaginal laparoscopy, which involves making a small cut in the vaginal wall and observing the ovary with an endoscope.

"This allows us direct access to and observation of the tubo-ovarian structures without manipulation using forceps," says Gordts.

For the photos of ovulation, which only accidentally captured the critical moment, Jacques Donnez at the Catholic University of Louvain (UCL) in Brussels, Belgium, used gas to distend the organs for photography. However, Gordts and Brosens planned the procedure to coincide with ovulation and used saline solution to "float" the structures.
Perfect timing

Observation was timed for the day of the peak of the patient's luteal hormone cycle. Ovulation was predicted to occur on the evening of the day of the LH peak, and the endoscope introduced at 6 pm.

A small amount of saline was used to float the opening of the fallopian tube, its fimbriae (the "fingers" that sweep the egg into the tube) and the ovary itself. This gives a more natural appearance than gas, says Gordts.

In the video, the fimbriae can be seen sweeping in time with the patient's heartbeat. A mucus plug can be seen protruding from the ovary – this contains the egg.

"The ovum is not captured 'naked'," says Gordts. "There is no eruption like a volcano."

Gordts says that in clinical practice it is not easy to organise the observation of ovulation. "We were probably lucky to be successful at our first attempt," he says.

Clinical examination of the anterior chest and lungs from the USMLE collection

Posterior Chest Examination from the USMLE collection

Knee reflex video from the USMLE collection

http://www.wss4m.com/vb

As one of the first pediatric centers in the United States to use a new state-of-the-art MRI machine designed especially for kids, Children's Hospital of Michigan continues to deliver world-class, patient-friendly health care. ~ Detroit Medical Center

DMC pediatric heart specialist uses less invasive technique to repair a child's Atrial Septal Defect ("Hole in the heart.".) ~ Detroit Medical Center

Infant Urine Specimen Collection

The video will describe anatomy of thorax as seen on a chest lateral view.

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