Human urinary systemमानव उत्सर्जन तंत्र

NCERT Fig 16.1 · interactive diagram

Parts and their functions

• Kidney (वृक्क) — Bean-shaped; 10–12 cm × 5–7 cm × 2–3 cm, 120–170 g; forms urine.
• Ureter (मूत्रवाहिनी) — Carries urine from the renal pelvis to the bladder.
• Urinary bladder (मूत्राशय) — Stores urine; stretch receptors in its wall start the micturition reflex.
• Urethra (मूत्रमार्ग) — Releases urine; guarded by the urethral sphincter.
• Inferior vena cava (पश्च महाशिरा) — Receives filtered blood from the renal veins.
• Dorsal aorta (पृष्ठ महाधमनी) — Supplies blood to the kidneys through renal arteries.
• Renal artery (वृक्क धमनी) — Brings blood (with wastes) into the kidney through the hilum.
• Renal vein (वृक्क शिरा) — Takes cleaned blood out of the kidney.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 16.1. Report a mistake