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Topic Notes · Easy summaries with diagrams
Chapter 4 — Chapter 4 — Human Urinary System
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📘Easy summary
Organs: pair of kidneys, pair of ureters, urinary bladder (stores urine), urethra (carries it out). Kidneys are bean-shaped, at back of abdomen either side of vertebral column; renal artery brings blood with wastes, renal vein takes clean blood. In L.S.: outer cortex (dark, contains renal corpuscles), inner medulla (renal pyramids with loops and collecting ducts) and renal pelvis leading to ureter; hilus is the notch.
⭐Key points
- ~1 million nephrons in each kidney.
🔬Diagram
🌿Real-life example
Bladder stores urine temporarily.
💡Exam tip
- Label cortex, medulla, pelvis.
✅Quick check
1. Stores urine:
2. Outer kidney region:
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