4. The knuckles are created by the articulation between the __ and the a. Metacarpals, carpals b. Phalanges, metacarpals c. Phalanges, carpals d. Carpals, ulna Submit

Did you know that the knuckles are a key part of our hand's flexibility and strength? Specifically, they are formed by the articulation between the phalanges (the bones in your fingers) and the metacarpals (the bones in your hand). This connection allows you to grip, punch, and gesticulate freely! In everyday life, these joint articulations are essential not just for basic hand functions, but also for specific activities like playing musical instruments, typing, or even crafting. Understanding the role of your knuckles can also help you appreciate how injuries, like sprains or fractures, might affect these intricate movements. So, treat those knuckles well!