15 facts about skeletal system for kids.

Here are some of the interesting facts you never knew about skeletal system:

Fact 1:1 out of every 20 people in the world have an extra rib

Fact 2:The smallest bone in our body is the ‘stirrup’,located deep in the ear. It is hardly larger than a grain of rice.

Fact 3:The adult human skeletal system consists of 206 bones

Fact 4: Human babies are born with 300 to 350 bones

Fact 5:Bones are relatively light, yet five times stronger than steel.

Fact 6:The longest bone in the body is called the femur, which connects the pelvis to the knee.

Fact 7:The skull is composed of 22 bones

Fact 8:The skeleton makes up about 30-40% of the human body mass.

Fact 9:The best way to look at bones is with a special photo called an X-ray.

Fact 10:Inbetween the hands, wrists, and the fingers, there are 54 bones.

Fact 11:Bone cells release a hormone called osteocalcin, which contributes to the regulation of blood sugar (glucose) and fat deposition.

Fact 12:Babies have over 270, but by adulthood many of these have fused together.

Fact 13:All of the bones are slowly replaced until they are new bone once every 7 years!

Fact 14: Bones can stand stresses up to 24,000 pounds per square inch

Fact 15:the bones provide a store of chemicals such as calcium salts