Institute of Human Anatomy on Instagram: "The Sound of Severe Arthritis: Cartilage vs Bone-on-Bone Listen closely to this real knee joint dissection - the difference in sound tells the whole story. WHAT YOU'RE HEARING: Tapping on remaining cartilage = cushioned sound Tapping on exposed bone = hard, direct contact This is severe arthritis where the protective cartilage has worn away completely in some areas, leaving bone grinding directly on bone with every movement. BEYOND ARTICULAR CARTILAGE: A

骨木镶嵌 Bone inlay | Originating from ancient China’s Longshan period, bone inlay evolved over millennia, thriving with maritime trade and gracing royal collections in the Qing era. #chinesecraft #chineseheritage #traditional #ancient #chinesetradition #tiktok #china #history #handmade #Qing #bone #cultureheritage

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