Final answer:
Ureters open into the urinary bladder and branch into sections called calyces. They play a crucial role in urine transport and storage before urination.
Step-by-step explanation:
The ureters open into the urinary bladder, then branches into sections called the calyces. The urinary system is designed to filter blood and remove waste in the form of urine. The ureters are muscular tubes that propel urine from the kidneys to the bladder using waves of peristalsis. Calyces are cup-like structures in the kidneys that collect urine before it passes on to the renal pelvis and then into the ureter. The bladder, lined with transitional epithelium, serves as a storage space for urine until it is excreted through urination. During urination, the bladder contracts to push urine into the urethra, leading to the external urethral opening for expulsion from the body.