ANATOMY

Detailed explanation-1: -The correct answer is option C because the proximal convoluted tubule is the tube that comes directly after the Bowman’s capsule and is, therefore, the closest to the renal corpuscle.

Detailed explanation-2: -The beginning of the distal convoluted tubule is found close to the renal corpuscle, in a structure known as the juxtaglomerular complex.

Detailed explanation-3: -The proximal convoluted tubule (PCT) is a segment of the renal tubule responsible for the reabsorption and secretion of various solutes and water. The PCT is located in the renal cortex, the outer part of the kidney, and is the first segment of the renal tubule, where it receives the filtrate from the renal corpuscle.

Detailed explanation-4: -The proximal convoluted tubule is the tubular segment of the nephron that connects the renal corpuscle to the proximal straight tubule and ultimately to the loop of Henle. It is located in the renal cortex of the medulla and functions in both reabsorption and secretion.

Detailed explanation-5: -proximal convoluted tubule (red: found in the renal cortex) loop of Henle (blue: mostly in the medulla) distal convoluted tubule (purple: found in the renal cortex)