One aspect of this function is to rid the body of waste products that accumulate as a result of cellular metabolism , and, because of this, it is sometimes referred to as the excretory system. Although the urinary system has a major role in excretion, other organs contribute to the excretory function. The lungs in the respiratory system excrete some waste products, such as carbon dioxide and water.
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Your name: is required Error: This is required. Your email: is required Error: This is required Error: Not a valid value. Send to: is required Error: This is required Error: Not a valid value. What is the urinary system? Your urinary system prevents waste and toxins from building up in your blood. It also: helps regulate your blood pressure maintains your body's water balance helps keep bones strong and healthy controls the levels of chemicals and salts in your blood helps make your body's red blood cells Your urinary system is made up of: 2 kidneys — organs that filter blood to make urine the bladder — an organ for storing urine 2 ureters — tubes connecting your kidneys to your bladder the urethra — a tube connecting your bladder to your body's surface How does the urinary system work?
Your kidneys work non-stop, with all of your blood passing through them every 5 minutes. What are the common conditions related to the urinary tract? Urinary tract infection Urinary tract infections UTIs occur when an infection, usually caused by bacteria, enters the urinary tract. The most common types of UTI include: cystitis , an infection of the bladder lining, and the most common lower urinary tract infection urethritis, an infection of the urethra pyelonephritis , an infection of the upper urinary tract, which is very serious because it affects the kidneys You should see your doctor if you have symptoms of a UTI.
Kidney stones Kidney stones develop when waste chemicals in your urine form crystals that clump together.
Urinary retention Urinary retention , being unable to empty your bladder, can be acute or chronic. Prostate problems Because a man's urethra passes through his prostate, swelling or enlargement of this gland can affect his ability to pass urine. This triangle-shaped, hollow organ is located in the lower belly. It is held in place by ligaments that are attached to other organs and the pelvic bones.
The bladder's walls relax and expand to store urine. They contract and flatten to empty urine through the urethra. The typical healthy adult bladder can store up to 2 cups of urine for 2 to 5 hours. Two sphincter muscles. These circular muscles help keep urine from leaking by closing tightly like a rubber band around the opening of the bladder. Nerves in the bladder. The nerves alert a person when it is time to urinate, or empty the bladder. This tube allows urine to pass outside the body.
The brain signals the bladder muscles to tighten. Kidneys remove excessive waste from the blood through filtration process. Our blood consists of unwanted substances coming from things we eat and drink. Kidney automatically removes excessive salts and minerals to leave just the quantity the body needs. Every day about liters of blood passes through the Kidneys via the renal arteries. Millions of tiny filters, called glomeruli, inside the Kidneys separate wastes and water from the blood.
When the Urine passes from Ureters to Urinary Bladder, it starts filling up the bladder and when it reaches the maximum level, the brain and the spinal cord get the signal. These signals cause relaxation of the internal Urethral Sphincter and cause the sensation of needing to Urinate. Urination can be delayed as long as the Urinary Bladder does not exceed its maximum filling volume, but as the volume increases nerve signals gets stronger leading to greater discomfort and desire to urinate.
Kidneys deal with several Hormones during the entire process namely:. For more details about our Urinary system and the disease, please visit our website: www. Urinary System Anatomy Urinary system is of one of the vital system among human body parts.
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