MICROANATOMY

Detailed explanation-1: -From the calyxes, pee travels out of the kidneys through the ureters (pronounced: YUR-uh-ters) to be stored in the bladder (a muscular sac in the lower belly). When a person urinates, the pee exits the bladder and goes out of the body through the urethra (pronounced: yoo-REE-thruh), another tube-like structure.

Detailed explanation-2: -The bladder is a hollow, muscular sac that receives the urine from the ureters and stores it until it is ready to be emptied from the body.

Detailed explanation-3: -The muscles of your bladder wall remain relaxed while the bladder fills with urine, and the sphincter muscles remain contracted to keep urine in the bladder.