Calvaria

Hinge-joint

Your Skull: Nature's Ultimate Protective Case 🧠💀 Think the skull is just one bone? Think again! It's actually a complex structure made up of 22 bones connected by immovable joints called sutures—like the one running across the top of the skull. Why the skull is such an engineering marvel: 🛡️ Rigid protective case – Shields your brain from external impacts (falls, bumps, or that accidental headbutt with your friend) 💪 Thick yet strategic design – Strong where it needs to be, but also has open