What is the function papilla in kidneys?

Papillae are small, nipple-shaped structures found in the kidneys. They are located at the tips of the renal pyramids, which are cone-shaped structures that form the functional units of the kidneys.

The papillae are lined with transitional epithelium, which is a type of epithelium that can stretch and contract. This allows the papillae to expand and contract as the kidneys filter urine.

The papillae also contain a network of blood vessels that help to supply the kidneys with blood. The blood vessels in the papillae are responsible for filtering waste products from the blood and transporting them to the urine.

The papillae play an important role in the kidneys' filtering process. They help to ensure that all of the waste products in the blood are filtered out and transported to the urine. This helps to keep the body healthy and functioning properly.