146. Which of the following is NOT characterized by transitional epithelium?a.Uretersb.Renal pelvisc.Renal calycesd.Renal cortex

d. Renal cortex

Transitional epithelium is a type of tissue consisting of multiple layers of epithelial cells which can contract and expand. It is found in tissues that stretch and it can change shape depending on the physiological condition.

a. Ureters: These are tubes that carry urine from the kidneys to the bladder. They are lined with transitional epithelium because they need to expand and contract as urine flows through them.

b. Renal pelvis: This is a funnel-shaped space in the kidney that collects urine and passes it into the ureter. It is also lined with transitional epithelium for the same reason as the ureters.

c. Renal calyces: These are extensions of the renal pelvis that collect urine from the pyramids in the kidney. They are also lined with transitional epithelium because they need to expand and contract as urine flows through them.

d. Renal cortex: This is the outer part of the kidney where blood filtration takes place. It is NOT lined with transitional epithelium. Instead, it contains structures such as glomeruli and renal tubules, which are involved