What does a minor calyx receive?

What does a minor calyx receive?

• A. two or more renal papillae
• B. one renal papilla
• C. the renal pelvis
• D. the major calyx

Answer: (B)

A minor calyx receives urine from one renal papilla. The papilla is the tip of a renal pyramid where the collecting ducts drain into the papillary ducts, which open into the minor calyx surrounding that papilla. Each papilla has its own minor calyx, and several minor calyces merge to form a major calyx, which then drains into the renal pelvis. So the minor calyx is the recipient of a single papilla, not multiple papillae or downstream structures like the renal pelvis or a major calyx.

A minor calyx receives urine from one renal papilla. The papilla is the tip of a renal pyramid where the collecting ducts drain into the papillary ducts, which open into the minor calyx surrounding that papilla. Each papilla has its own minor calyx, and several minor calyces merge to form a major calyx, which then drains into the renal pelvis. So the minor calyx is the recipient of a single papilla, not multiple papillae or downstream structures like the renal pelvis or a major calyx.