Anatomy JG cells (Juxta glomerular apparatus) are ? A Macula densa B Smooth muscular cells of afferent aeriole C Smooth muscular cells of afferent aeriole D Islets of epithelial cells 💡 Explanation JG cells (Juxta glomerular apparatus) are ? ✓ Correct Answer: B. Smooth muscular cells of afferent aeriole