Question
The JGA (Juxta Glomerular Apparatus) is a special sensitive region formed by cellular modifications in ____________ related to the same nephron.
NEET
Zoology
Excretory Products and their Elimination
2026
NEET 2026 (Cancelled)
NEET Zoology Question (2026) — Solution
Options
- A. Distal convoluted tubule and efferent renal arteriole
- B. Proximal convoluted tubule and efferent renal arteriole
- C. Proximal convoluted tubule and afferent renal arteriole
- D. Distal convoluted tubule and afferent renal arteriole
Answer
D. Distal convoluted tubule and afferent renal arteriole
Step-by-step solution
The Juxta Glomerular Apparatus (JGA) is a special sensitive region formed by cellular modifications in the distal convoluted tubule (DCT) and the afferent arteriole at the location of their contact. The cells of the DCT at this region become modified to form the macula densa, while the smooth muscle cells of the afferent arteriole are modified to form juxtaglomerular (JG) cells, which secrete renin. Answer: Distal convoluted tubule and afferent renal arteriole
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