Ducts Within Each Renal Papilla Empty Urine into a Cup-Shaped

Question

Ducts within each renal papilla empty urine into a cup-shaped drain, called a ________.
A) major calyx
B) minor calyx
C) renal medulla
D) renal pelvis
E) renal calyx

Accepted Answer

The ducts within each renal papilla empty urine into a cup-shaped drain called a minor calyx. The major calyx is formed by the fusion of several minor calyces and empties into the renal pelvis, which then joins the ureter. The renal medulla refers to the inner portion of the kidney, which includes the renal pyramids and renal papillae. The term "renal calyx" is not specific enough, as there are minor and major calyces within the kidney.