perhaps it has to do with the changes with blood pressure etc. The opinions expressed here are solely those of the User.The opinions expressed here are solely those of the User. User-generated content areas are not reviewed by a WebMD physician.
Fluid later passes from the distal tubule to the collecting ducts. Ultra filtration occurs in the cortex in the cortical collecting ducts, which is the last process of the nephron. The urine then passes through the collecting ducts through the drainage system of the kidney to the ureters and bladder for urination.T he counter current system is similar to the nephron because the loop of henle is to be able to create dilute urine or concentrated urine depending on what the body wants and needs.he urine then passes through the collecting ducts through the drainage system of the kidney to the ureters and bladder for urination. T he counter current system is similar to the nephron because the loop of henle is to be able to create dilute urine or concentrated urine depending on what the body wants and needs.
Confidence votes 1.1K. The sperm usually fertilizes the egg in the Fallopian tubes. Then, the fertilized egg moves down to the uterus where it implants, causing pregnancy. The segment of the Fallopian Tube where fertilization commonly occurs is the ampulla..s the egg travels travel down,  the sperm cells are released from the oviduct wall and continue  their journey to the egg. The long and short of it is that  fertilization finally occurs in the ampula or wider section of the  oviduct closer to the ovary.