Question

Match each region of the renal tubule to a description of its location and histology.

Region:
Proximal convoluted tubule
Thing segment of nephron loop
Thick segment of nephron loop
Distal convoluted tubule

Description:
Located in the cortex; lined by a simple squamous epithelium
Located in the medulla; lined by a simple squamous epithelium
Located in the cortex; lined by a simple cuboidal epithelium without microvilli
Located in the medulla; lined by a simple cuboidal epithelium
Located in the medulla; lined by a simple cuboidal epithelium with microvilli
Located in the cortex; lined by a simple cuboidal epithelium with microvilli

Answer 1

The proximal convoluted tubule is in the cortex with cuboidal cells and microvilli, the thin segment of the nephron loop is in the medulla with squamous cells, the thick segment of the nephron loop is in the medulla with cuboidal cells, and the distal convoluted tubule is in the cortex with cuboidal cells without microvilli.

Step-by-step explanation:

The proximal convoluted tubule (PCT) is located in the cortex and is lined by a simple cuboidal epithelium with microvilli, which increases its surface area for reabsorption. The thin segment of the nephron loop, found in the medulla, is characterized by a simple squamous epithelium, indicative of its involvement in the passive movement of substances. The thick segment of the nephron loop, also primarily in the medulla, has a simple cuboidal epithelium without microvilli. Lastly, the distal convoluted tubule (DCT), located in the cortex, features a simple cuboidal epithelium without microvilli, similar to the thick segment of the nephron loop but with a different functional role in the nephron.