What is the role and function of the bladder

Urinary bladder functions include storing urine, controlling urination, etc. Related analysis is as follows:

1. Storage of urine

One of the main functions of the bladder is to store urine produced by the kidneys, which convert it into urine by filtering waste and excess water from the blood. Urine flows into the bladder through the ureters. During the storage period, the smooth muscle layer of the bladder wall relaxes to accommodate the increase of urine. There are special tissues inside the bladder called clear cells, which can expand and contract to accommodate different amounts of urine.

2. Control of urination

When the bladder is fully stored, when the body feels pressure in the bladder, it will trigger the desire to urinate. During urination, the sphincter at the bottom of the bladder contracts, while the neck muscles of the bladder relax, and urine is discharged through the urethra.