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Prevention of Traveler

How to avoid getting traveler's diarrhea in high risk and third world areas abroad, and medications for treatment.

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Cornea transplant

Video shows how full-thickness and partial-thickness cornea transplants are performed.

Vasectomy Proceedure

This animation shows a vasectomy procedure. A vasectomy is a procedure to cause permanently sterility in a man by preventing the transport of sperm out of the testes. A small incision is made in the scrotum and each vas deferens is tied off and cut apart preventing sperm from being released within the ejaculate. The small skin incision is stitched closed and the surgery does not affect a man's sexual function.

Reverse crunch with fitness ball

You can do many core exercises with a fitness ball. See the reverse crunch.

Athetosis resulting from basal ganglia injury

This animation illustrates the location of basal ganglia in the brain. Injury to the basal ganglia may result in athetosis (constant writhing movements of the body).

Hypertension

This animation shows the effects of hypertension on a cerebral artery.

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