ECOLOGY
EXCRETORY PRODUCTS AND THEIR ELIMINATION
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Detailed explanation-1: -The ureter is made up of 3 layers: innermost mucosa, muscularis, and the outer adventitia. The mucosa is lined with circular transitional epithelium.
Detailed explanation-2: -The ureters work constantly, emptying urine into the bladder about every 10 to 15 seconds. In addition to their role in eliminating waste from the body, the kidneys also balance fluids in the body, release hormones to regulate blood pressure, and control the production of red blood cells.
Detailed explanation-3: -The ureter is surrounded by two muscular layers, an inner longitudinal layer of muscle, and an outer circular or spiral layer of muscle. The lower third of the ureter has a third muscular layer. Beyond these layers sits an adventitia containing blood vessels, lymphatic vessels, and veins.