select the correct option: a. Giomanutus is a a tuft of capillaries formed by the afferent articles which is a fine branch of renal vein b. Giomerulus along with the bowman's capsule forms renal corpuscle c. Vasa recta is a find branch of afferent arteriole which runs parallel to Henie's loop d. in human kidney, cortical nephron and juxtamedullary nephrons are in equal proportion

Options

A. a and b are correct
B. b and c are correct
C. a, b and d are correct
D. a and d are correct

Answer

To solve the question, we need to analyze each of the statements provided and determine their accuracy based on our knowledge of renal anatomy and physiology.

### Step-by-Step Solution:

1. **Statement A**: "Glomerulus is a tuft of capillaries formed by the afferent arterioles, which is a branch of renal vein."
- **Analysis**: This statement is incorrect. The glomerulus is indeed a tuft of capillaries, but it is formed by the afferent arterioles, which are branches of the renal artery, not the renal vein.

2. **Statement B**: "Glomerulus along with the Bowman's capsule forms the renal corpuscle."
- **Analysis**: This statement is correct. The renal corpuscle consists of the glomerulus and the Bowman's capsule, which encases the glomerulus.

3. **Statement C**: "Vasa recta is a fine branch of the afferent arteriole which runs parallel to Henle's loop."
- **Analysis**: This statement is also correct. The vasa recta are indeed branches of the efferent arterioles of juxtamedullary nephrons and run parallel to the loops of Henle.

4. **Statement D**: "In human kidneys, cortical nephron and juxtamedullary nephrons are in equal proportion."
- **Analysis**: This statement is incorrect. In human kidneys, cortical nephrons are more numerous than juxtamedullary nephrons. Cortical nephrons make up about 85% of the total nephrons, while juxtamedullary nephrons are fewer in number.

### Conclusion:
Based on the analysis:
- **Correct Statements**: B and C
- **Incorrect Statements**: A and D

### Final Answer:
The correct options are **B and C**.