Video: Cancer of the throat or larynx
From a top view of the voice box (larynx) and vocal cords, this animation shows the formation of a malignant tumor on the right vocal cord.
This animation shows the HIV molecule, its components, and what it does inside the body to an infected person.
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.
This animation shows the process in which light is transformed by the retina as electrical impulses that travel to the brain through the optic nerve.
This animation shows a breast reduction (lift) procedure.
This animation depicts how a cataract is seen in the eye.
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