The wall of the ureter has three layers: an inner mucosa, a smooth muscle layer, and an outer fibrous coat of connective tissue.

Ureter

Tubular structure conducting urine from the kidney to the urinary bladder.

Mucosa

The moist, inner lining of some organs and body cavities (such as the nose, mouth, lungs, and stomach) that secretes mucus.

Fibrous Coat

A dense tissue layer that provides protective covering or support in various organs and structures in the body.