ANATOMY

Detailed explanation-1: -The urine flows from the kidneys through the ureters to the bladder. The urine is stored in the bladder until it leaves the body through the urethra.

Detailed explanation-2: -Urethra. The urethra is a thin-walled tube that carries urine by peristalsis from the bladder to the outside of the body.

Detailed explanation-3: -Urethra. This tube allows urine to pass outside the body. The brain signals the bladder muscles to tighten, which squeezes urine out of the bladder. At the same time, the brain signals the sphincter muscles to relax to let urine exit the bladder through the urethra.

Detailed explanation-4: -The ureter is a tube that carries urine from the kidney to the urinary bladder.

Detailed explanation-5: -The kidneys make urine. The ureters are tubes that carry urine from the kidneys to the bladder. The bladder stores urine. The urethra is a tube that carries urine from the bladder to the outside of the body.