The bladder is a vital component of the urinary system in the human body. It is responsible for storing urine until it is ready to be eliminated. The walls of the bladder are made of smooth muscle tissue that can stretch and accommodate increasing volumes of urine. When the bladder is full, nerve signals are sent to the brain, triggering the sensation of needing to urinate. The bladder then contracts, allowing the urine to flow through the urethra and out of the body. Proper bladder function is essential for maintaining urinary continence and overall urinary health.

“bladder”的英语定义和含义

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