IN THE CENTER OF THE KIDNEY IS __ ureter blood vessels bladder renal pelvis harmful substances

## Step 1<br />The question asks for the structure that is located in the center of the kidney. The options provided are ureter, blood vessels, bladder, renal pelvis, and harmful substances.<br /><br />## Step 2<br />The ureter is a tube that carries urine from the kidney to the bladder. It is not located in the center of the kidney.<br /><br />## Step 3<br />Blood vessels are responsible for carrying blood to and from the kidney. They are not located in the center of the kidney.<br /><br />## Step 4<br />The bladder is an organ that stores urine. It is not located in the center of the kidney.<br /><br />## Step 5<br />The renal pelvis is a funnel-shaped space in the innermost part of the kidney. It collects urine produced by the kidney before it moves to the ureter. Therefore, the renal pelvis is the structure that is located in the center of the kidney.<br /><br />## Step 6<br />Harmful substances are not a structure and are not located in the center of the kidney.