Before we review other interesting facts about the human excretory system, we will first turn our attention to the complexities of the urinary system. As mentioned previously, a large portion of our food and drink intake is filtered through the bloodstream and eliminated as liquid waste in our urine. If our bloodstream did not filter out such wastes, toxins would accumulate and we could become seriously ill. The renal arteries deliver blood to our kidneys which in turn serve as the main filters for our bloodstream, maintain the proper viscosity of our blood, and ensure a proper balance of nutrients. Each kidney contains millions of individual filters called nephrons which continuously filter and purify the blood. When the kidneys are functioning properly, they can process and filter up to 180 liters in a 24 hour period.
During this filtration process, the blood is absorbed and filtered by the nephrons which then send nutrients back into the blood stream via the renal veins while liquid wastes are secreted out. These waste products are deposited into the renal pelvis which delivers them to the ureters and, ultimately, the bladder where the urine is stored for later emptying.
Additional Facts Pertaining To The Human Excretory System
Armed with a basic understanding of how the urinary system works and knowledge of the major organs responsible for filtering processing and filtering our intake, let’s turn our attention to other interesting facts about our excretory system:
• In addition to filtering out wastes and by-products, the kidneys help maintain the proper balance of vitamins, minerals, and other nutrients in our body.
• The digestive and excretory systems are joined in such a way that they work in collaboration. The digestive system absorbs nutrients and filters solid waste while the urinary system does the same for liquids, delivering the liquid waste efficiently to your kidneys and, finally, to the bladder.
• We produce and eliminate approximately 1 ½ quarts of urine per day. In addition to waste and toxins, the urine contains excess liquid and nutrients that our bodies did not need at the time.
•Your full bladder is approximately the same size as your brain.
• Your liver will produce over 406 pounds of bile during your lifetime.
• Your bladder will store and eventually eliminate over 7,850,000,000,000 gallons of urine during the course of a lifetime.
• We are born with two kidneys and the one on the right will always sit just a little lower than the one on the left.
• A full bladder can hold up to 400 ml of urine.Many people don’t realize that your skin is also an organ and a part of the excretory system since its sweat glands also help eliminate toxins.
• The urea in urine is a great source of nitrogen and some gardeners will dilute their urine with water so they can then fertilize their plants with it.