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Amniocentesis & CVS Amniocentesis:
Technique of amniocentesis is illustrated. A pocket of amniotic fluid is located by sonogram. A small amount of fluid is removed by aspiration. Chorionic Villi Sampling:
Illustration showing the technique for chorionic villi sampling. Since the villi arise from trophoblast cells, their chromosome structure is the same as the fetus's. LifeART Collection Images Copyright © 1989-2001 by Lippincott Williams & Wilkins, Baltimore, MD