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.
Best Answer: In humans, most fertilizations occur in the Fallopian tubes. However, sometimes it does happen in the upper uterus. And in other cases -- especially due to pelvic inflammatory disease -- fertilization can occur externally from the reproductive tract, resulting in a seriously ectopic pregnancy.Source(s): Using Wikipedia is cheating. I have a degree in biology.ext common place it can occur is in the uterus. It can also occur in the abdomen and when it does, or when the fertilized ovum gets stuck and fails to move down into the uterus, it is called an ectopic pregnancy.