Final answer:
The urinary tract consists of the ureters, bladder, and urethra, moving from the renal pelvis outward. Water aids in passing kidney stones by increasing urine flow, and forceful urination involves muscle contractions and sphincter relaxation.
Step-by-step explanation:
The components of the urinary tract from the renal pelvis outward include the ureters, the urinary bladder, and the urethra. Drinking water helps facilitate the passage of kidney stones by increasing urine volume, which can help move stones down through the urinary tract.
Forceful urination is accomplished through the contraction of bladder muscles and relaxation of the urethral sphincter. The anatomical structures that provide protection to the kidneys include fatty tissue, the renal capsule, and the placement of the kidneys against the back muscles and rib cage.