[Solved] The symptoms of autism are quite different from those of Asperger's syndrome. Voided: Emptied or evacuated, often used in medical contexts to refer to the expulsion of waste fluid from the body. Nephron: The structural and functional unit of the kidney. Kidney: A pair of organs in the urinary system that filter waste products from the blood and excrete them in urine. Microscopic Units: Small units of measurement typically used to describe dimensions of cells and microorganisms, not visible to the naked eye.