The micrograph above shows a cross section of a ureter. identify tissues a-d and describe the function of each

A - Fibrous tissue  B - Longitudinal muscular fibers C -Subepithelial connective tissue  D - Transitional epithelium

Explanation:

Fibrous tissue(coat) is also known as dense connective tissue and it's designed for maintaining structure and resistance from damages. The function of fibrous tissue is to supply absorption in organs and bones. Longitudinal muscle fibers are surrounding the subepithelial connective tissue and they are settled lengthwise along the body (different shapes of liquids or tissues). The outer longitudinal fibers with the inner circular muscles are helping in increasing/decreasing the diameter of the ureteral lumen for peristalsis.In subepithelial connective tissue are mast cells that are derived from amyloid stem cell and this cell is a part of the neuroimmune and immune systems. The subepithelial CNs contain immune cells that survey the ureteral lining and as the basal membrane. The transitional epithelium is unique to the urinary system. It also secretes mucus to the lining.

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