Urinary System

Components of the Urinary System

• The urinary system comprises the kidneys, ureter, urinary bladder, and urethra (1^✔ ✔Trusted Source
  Components of the Urinary System
  
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Kidneys

• The kidneys are two bean-shaped organs that are reddish brown in colour. Each kidney is around the size of a fist (2^✔ ✔Trusted Source
  Kidneys
  
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• If one kidney is damaged or removed, the other kidney may grow and perform up to 75% of normal kidney function (2^✔ ✔Trusted Source
  Kidneys
  
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Nephrons

• Each kidney has around one million small filtering units known as nephrons. These nephrons are often regarded as the functional unit of the kidney (3^✔ ✔Trusted Source
  Kidneys: Anatomy
  
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Normal Range of Urine Output Per Day

• The normal urine output of an adult is between 800 and 2,000 ml per day, with a fluid consumption of about 2 liters per day (4^✔ ✔Trusted Source
  Urine 24-hour volume
  
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Blood Filtration in Kidneys

• All the blood in our body passes 300 times through the kidneys every day (5^✔ ✔Trusted Source
  How does the urinary system work?
  
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• The kidneys filter around 1,700 liters of blood per day (5^✔ ✔Trusted Source
  How does the urinary system work?
  
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Urinary Bladder

• The bladder is a hollow, muscular, balloon-shaped organ that serves as a urine reservoir. In other words, bladder is responsible for storing urine until it is expelled from the body (6^✔ ✔Trusted Source
  The Urinary Tract & How It Works
  
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• The urinary bladder may hold up to 500 ml of urine in women and 700 ml in men (5^✔ ✔Trusted Source
  How does the urinary system work?
  
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• The bladder swells when it is full and contracts to empty the urine. The sensation of needing to urinate is a signal from the bladder that it's nearing its capacity (7^✔ ✔Trusted Source
  Urine and Urination
  
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• People may feel the need to urinate when their bladder contains between 200 and 350 ml of urine (8^✔ ✔Trusted Source
  Bladder
  
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Male Urethra vs Female Urethra

• The urethra in men is around 20 to 25 cm long, which connects the urinary bladder to the penis (9^✔ ✔Trusted Source
  Histology, Male Urethra
  
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• Women have a shorter urethra than men, which is around 3 to 4 cm (1.5 inches) in length (10^✔ ✔Trusted Source
  Urethra
  
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• Women's shorter urethra and it being closer to anus are a contributing factor to their increased susceptibility to UTIs (11^✔ ✔Trusted Source
  Urinary Incontinence in Older Adults
  
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Urinary Incontinence

• Urinary incontinence occurs when a person leaks urine involuntarily due to a loss of bladder control (12^✔ ✔Trusted Source
  Urinary tract infection in women
  
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