Which urinary system structure is primarily responsible for storing urine?

Which urinary system structure is primarily responsible for storing urine?

• A. Bladder
• B. Kidney
• C. Ureter
• D. Urethra

Answer: (A)

Storing urine is the bladder’s main role. Urine is produced by the kidneys and travels down to the bladder through the ureters, where the bladder’s walls stretch to hold it. The detrusor muscle relaxes to accommodate more urine, and only when you’re ready to void does the bladder contract and urine exit through the urethra. The kidneys produce urine, the ureters transport it, and the urethra is the passage out of the body, so none of those structures serves primarily as a storage site like the bladder does.

Storing urine is the bladder’s main role. Urine is produced by the kidneys and travels down to the bladder through the ureters, where the bladder’s walls stretch to hold it. The detrusor muscle relaxes to accommodate more urine, and only when you’re ready to void does the bladder contract and urine exit through the urethra. The kidneys produce urine, the ureters transport it, and the urethra is the passage out of the body, so none of those structures serves primarily as a storage site like the bladder does.