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

Institute of Human Anatomy on Instagram: "What Do a Knee Joint and a Kidney Have in Common? GOUT. Looking at a real knee with arthritis - you can see gouges in the cartilage and areas that are bone-on-bone. But when we posted about this knee, people started asking about another joint condition: gout. WHAT IS GOUT? A buildup of urate crystals within joints that causes intense pain during flare-ups. While the knee can be affected, the most common site is the big toe - specifically the metatarsopha