Necessity for Support and Locomotion in Humans
Have you ever wondered about what supports a building or house? Is it just bricks and cement? You may be surprised to know that beneath the cement and mortar are thousands of steel pieces which are assembled to form the frame of a building. Without this rigid frame, the building would not be able to withstand the forces of nature such as strong winds and rain and would collapse in no time.
Like a building, human also have inner framework which is made of bones. The bones are joined together at the joints to form a framework or skeleton. The skeleton has five major functions. It provides shape and support, enables you to move, protects internal organs, produce blood cells and store certain materials such as calcium and phosphate.
Structure of the Human Skeleton
The parts of the skeleton that form an imaginary line down the back of the body are known as the axial skeleton. The limbs and the bones that connect them to the axial skeleton make up the appendicular skeleton. A newborn baby has about 275 bones whereas an adult has 206 bones. This is because as a person grows, some of the bones are fuse together.
Have you ever wondered about what supports a building or house? Is it just bricks and cement? You may be surprised to know that beneath the cement and mortar are thousands of steel pieces which are assembled to form the frame of a building. Without this rigid frame, the building would not be able to withstand the forces of nature such as strong winds and rain and would collapse in no time.
Like a building, human also have inner framework which is made of bones. The bones are joined together at the joints to form a framework or skeleton. The skeleton has five major functions. It provides shape and support, enables you to move, protects internal organs, produce blood cells and store certain materials such as calcium and phosphate.
Structure of the Human Skeleton
The parts of the skeleton that form an imaginary line down the back of the body are known as the axial skeleton. The limbs and the bones that connect them to the axial skeleton make up the appendicular skeleton. A newborn baby has about 275 bones whereas an adult has 206 bones. This is because as a person grows, some of the bones are fuse together.
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