Water loss, chemical re-absorption, protection from infection, and several other important process are directly related to this system.
Organs and body areas of this system include:
Humans produce around 1.5 liters of urine in a 24-hour period.
- The kidney concentrates the urine by regulating electrolytes and remove
urea from the blood and other wastes.
- Urea is an organic compound that was discovered in 1773.
- This compound is soluble in water and is essentially a waste product.
- Production of urea occurs in the liver and is the result of the breakdown of some amino acids.
- The bladder is an organ that is hallow.
- It is layered similar to a balloon with several muscles that make up this organ.
- The muscle is a Smooth Muscle
- Smooth muscle allows the bladder to enlarge when it becomes full and small when empty.
- Overall the bladder can hold 400-620 ml but the maximum is twice this amount if outflow is obstructed.
- The bladder lies just behind the Uterus and near the Vagina.
- This is the endpoint of the urinary system.
- Urine and other wastes begin in the kidney and then to the bladder and finally through the urethra and out the the vaginal opening.
- This tube connects the bladder to the outside of the body.
- Control of excretion of urine is through the urethral sphincter
Diseases or Conditions that can affect this System