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Seated leg press with weight machine

The leg press exercise strengthens the lower body. See how it's done.

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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.

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Ovulation Animation

This animation shows the process of ovulation (the release a single egg cell from an ovary). Ovulation occurs though a sequence of hormonal responses. Located deep within the brain, the pituitary gland releases the hormones FSH and LH, which travel through the blood stream to the ovaries. These hormones signal the development and release a single egg cell from one of the ovaries. The sweeping motion of the fimbriae draws the egg cell through a very small space in the open body cavity into the uterine, or fallopian, tube. The egg cell will either be fertilized by sperm or will dissolve if fertilization does not take place.

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Pre-eclampsia

This animation depicts hypertension caused by pre-eclampsia that adversely affects the fetus by causing constriction of the placental arteries.

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Epinephrine and exercise

This animation shows the release of epinephrine and its effect of the heart.

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Breast lift

This animation shows a breast reduction (lift) procedure.

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