Illustration of the process of cleaning the bladder (large bowl) with the cleansing fluid (red) created by the prostate (small bowl).

Illustration of a transient ischemic attack (ministroke) in a man.

Innervation of the urogenital system. This is a unique view down the spinal cord that shows the normal nerves to the kidney, ureters, bladder and penis.

Aortic valve replacement. Shown here: surgery to replace a stenotic, aortic valve (inset) with a synthetic, prosthetic valve.

Capsulorhexis (lens replacement). Seen here, and oblique section through the eye revealing a method for removing the capsule around the lens (capsulorhexis). The defective lens is then suctioned out and replaced with a new, artificial one.

Arterial occlusion of an embolus. Shown here: a close-up of a blood vessel being blocked by an embolus (blood clot); healthy tissue on left, blood starved tissue on right.

Medical illustration showing the effect of smoking on the heart.

Medical illustration of a bandaged heart.

Medical illustration showing heart with a metronome in front of it.

Red plug and outlet shaped like red crosses.

Heart drawing EKG printout.

Human heart with EKG reading coming out.

Medical illustration of bed on top of pills, capsules, scalpel, and needles.

Illustration of a capsule with doves, depicting the peace of mind obtained from a sleeping pill, tranquilizer, or other medication.

Doctor with bound hands holding syringe while patient sleeps.

Doctor trims shrub shaped like caduceus.

Man behind cigarette prison bars.

Man in wheelchair operates transparent airplane.

Heart in vise.

Computerized anatomical diagram illustrating the circulatory and skeletal systems (anterior view).