Which of the following are found in cortical region of kidney of mammals?

Options

A. PCT and DCT
B. PCT and loop of Henle
C. Loop of Henle and collecting duct
D. DCT and loop of Henle

Answer

To answer the question regarding which structures are found in the cortical region of the kidney in mammals, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Kidney**:
- The kidney is divided into two main regions: the cortex (outer region) and the medulla (inner region).

2. **Identify the Nephron Components**:
- The nephron is the functional unit of the kidney and consists of several parts, including the renal corpuscle (which contains the glomerulus and Bowman's capsule), proximal convoluted tubule (PCT), loop of Henle, distal convoluted tubule (DCT), and collecting duct.

3. **Locate the PCT and DCT**:
- The PCT and DCT are located in the cortical region of the kidney. The PCT is responsible for the reabsorption of water, ions, and nutrients, while the DCT is involved in the regulation of potassium, sodium, and pH.

4. **Identify the Loop of Henle and Collecting Duct**:
- The loop of Henle is primarily located in the medullary region of the kidney. The collecting duct also extends into the medulla.

5. **Conclusion**:
- Based on the above information, the structures that are found in the cortical region of the kidney are the proximal convoluted tubule (PCT) and the distal convoluted tubule (DCT).

### Final Answer:
The correct answer is **PCT and DCT**.

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