The characteristics of newborn skin are expressed through the functions of protection, excretion, regulation, etc. The characteristics of newborn muscles are expressed through muscle strength and muscle tone. The characteristics of newborn bones depend on bones such as skull, spine, rib cage and teeth.

Adults have 206 bones, accounting for about 15% of their body weight. It may be hard to imagine that a tiny newborn baby has more bones than an adult. Those bones are growing and changing shape every day. How many things do you not know about the bones in your body? Follow the article below to understand more.