Millions of sperms are deposited into the vagina during sexual intercourse. The sperms make their way through the cervix into the uterus and then on to the fallopian tubes. As they swim along this way their numbers decline. Only a few hundred sperm will get close to the egg. During the trip, sperm prepare themselves to meet the egg by subtle alterations of their heads and movement patterns. Once inside the fallopian tube, the sperm attracts the egg by releasing a chemical. The egg is surrounded by a protective covering called the zona pellucida, which allows only one sperm to penetrate it. Once inside the egg, the head of the fertilizing sperm releases its genetic contents, which fuses with the nucleus of the egg. Fertilisation is now complete. Sperm are able to survive for 2-3 days within the female's reproductive tract. The length of the time that a woman's egg can be fertilized by a man's sperm ranges from 12-24 hours.

Mothers can do everything for her baby

Anatomy of Love

This video shows the delivery of the placenta after delivery of the fetus

Head to Toe Assesment

Purse String Suture

Diarrhea in Children: Common Causes and Treatments Diarrhea is the body's way of ridding itself of germs, and most episodes last a few days to a week. Diarrhea often occurs with fever, nausea, vomiting, cramps, and dehydration. Some of the most common reasons kids get diarrhea include: Infection from viruses like rotavirus, bacteria like salmonella and, rarely, parasites like giardia. Viruses are the most common cause of a child's diarrhea. Along with loose or watery stools, symptoms of a viral gastroenteritis infection often include vomiting, stomachache, headache, and fever. When treating viral gastroenteritis -- which can last 5-14 days -- it's important to prevent fluid loss. Offer additional breast milk or an oral rehydration solution (ORS) to infants and young children. Water alone doesn't have enough sodium, potassium, and other nutrients to safely rehydrate very young children. Be sure to talk to your doctor about the amount of fluids your child needs, how to make sure he or she gets them, when to give them, and how to watch for dehydration. Older children with diarrhea can drink anything they like to stay hydrated, including ORS and brand-name products (their names usually end in "lyte"). Popsicles can also be a good way to get fluids into a child who's been vomiting and needs to rehydrate slowly.

A detailed description of the Arterial Pulse including its waveform and pathological subtypes. Also discussed are the abnormal rates (tachycardia and bradycardia) and their causes, abnormal rhythm (including regularly regular and irregularly irregular pulses) and abnormal character (including pulses bisferiens, pulses parvus et tarsus, pulsus alternans, pulses paradoxus and others.) Description of pulse in various pathological states including Aortic stenosis and aortic regurgitation is also included. Finally there is also a description of the peripheral signs of aortic regurgitation.

Dental implant surgery

A 30 YEAR WOMEN WITH INTRACTABLE BILIARY COLIC

CASE REPORT: This 30 year women developed severe pain right upper quadrant for last 10 days. She sought many consultations and was given intravenous analgesics both (nonnarcortic and narcotic). Pain did not subside and she sought my consultation. Examination revealed her to be in agony with severe upper abdominal pain. General physical examination was otherwise unremarkable. Abdominal examination revealed mild tenderness in right hypochondrium with doubtful Murphy's sign. Urgent abdominal ultrasound showed a linear structure in bile ducts making slow writhing movements. The structure had an anechoic tube (alimentary canal) inside suggestive of a large Ascarid. Urgent ERCP was performed and bile duct and pancreatic duct cannulated selectively. Pancreatic duct was normal. Bile ducts contained a long linear filling defect extending from lower end of common bile duct to right intrahepatic duct (see image gallery for ERCP plate). A basket was introduced in the duct (see video clip) and the linear structure was engaged with soft closure and extracted out of the bile duct. Accompanying the basket was a 25 cm thick highly motile Ascarid. To recover the worm, endoscope was withdrawn along with the basket and the friendly catch. While the endoscope was being withdrawn and the basket was in the duodenum with the worm out of bile duct, patient indicated of relief of abdominal pain. A relook cholangiogram showed no more structures in the duct. She was given antihelmintic therapy and passed hundreds of worms with the feces. The worms recovered form stools were both male and female population and varied in length and size. However the lone worm recovered form bile ducts was the longest and the thickest male worm. The phenomenal behavior of this ubiquitous infection remains unexplained.

Heart dissection Explaination

With keratoconus, the clear, dome-shaped tissue that covers the eye (cornea) thins and bulges outward into a cone shape. Its cause is unknown. Symptoms first appear during puberty or the late teens and include blurred vision and sensitivity to light and glare. Vision can be corrected with glasses or contact lenses early on. Advanced cases may require a cornea transplant.

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Testis operation

An intelligence quotient (IQ) is a total score derived from one of several standardized tests designed to assess human intelligence. IQ is a number meant to measure people cognitive abilities (intelligence) in relation to their age group. An I.Q between 90 and 110 is considered average; over 120, superior. Roughly 68% of the population has an IQ between 85 and 115. The average range between 70 and 130, and represents about 95% of the population.

A video showing surgery for hydrocele

Transurethral resection of the prostate (also known as TURP, plural TURPs and as a transurethral prostatic resection TUPR) is a urological operation. It is used to treat benign prostatic hyperplasia (BPH). As the name indicates, it is performed by visualising the prostate through the urethra and removing tissue by electrocautery or sharp dissection. This is considered the most effective treatment for BPH. This procedure is done with spinal or general anesthetic. A large triple lumen catheter is inserted through the urethra to irrigate and drain the bladder after the surgical procedure is complete. Outcome is considered excellent for 80-90% of BPH patients. Because of bleeding risks associated with the surgery, TURP is not considered safe for many patients with cardiac problems. As with all invasive procedures, the patient should first discuss medications they are taking with their doctor, most especially blood thinners or anticoagulants, such as warfarin (Coumadin), or aspirin. These may need to be discontinued prior to surgery. Postop complications include bleeding (most common), clotting and hyponatremia (due to bladder irrigation).

Additionally, transurethral resection of the prostate is associated with low but important morbidity and mortality.

Full examination of the female from head to toe by Loyola Medical School, Chicago part 1