Completar frases Urinary system Versión en línea Complete the following sentences. por Iris Usach Pérez 1 urine biopsy uretra report Kidney failure kidneys bladder pathology stones are crystal - like structures in urine that can be very painful to pass . In a spme tissues are removed . The organ that holds the before it is expeled is the . Before leaving the organism , the urine passes throught the . If one of the doesn't work there is a renal . The will show the results from several tests .