Structure Of The Human Skeleton


 
 
Concept Explanation
 

Structure Of The Human Skeleton

The bones in our body make up a framework called skeleton. The skeleton of an adult human being is made up of 206 bones. A baby body on the other hand has about 300 bones at birth. These bones eventually fuse to form the 206 bones the adults. Some of baby's bones are made of a special material called cartilage.

Structure Of The Human Skeleton:   

  • The bones of skeleton provides a framework which holds our body together. The skeleton also gives a shape to our body.   Skeleton has four basic parts— the skull, breastbone, the backbone or spine, the ribs and limbs.
  • The human skeleton consist of a strong backbone which has skull at its top end. The skull has two eyes sockets, upper jaw and lower jaw in it.
  • Ribs are attached to the upper part of the neck bone forming a rib cage. There is a breastbone in front of the rib cage.
  • At the lower end of backbone is a wide and strong structure called hip bone.
  • Just below the neck, there are shoulder bones on both sides of the skeleton. The shoulder bones consists of two bones : collar bones and shoulder blade.
  • The upper limb of human body from the shoulder to the hand is called as arm. The two arms are attached to the shoulder blades of the skeleton by ball and socket joints. Each arm is consists of three parts : upper arm, lower arm and hand.The upper arm bone is connected to lower arm bones by a hinge joint at the elbow. The hand consists of various small bones which form wrist, palm and fingers.
  • The lower limbs of the body on which person walks on stands are called legs. Each leg consists of three parts : upper leg, lower leg and foot. The upper leg is from hip to knee. The lower leg is from knee to ankle. The upper leg bone is connected to the lower leg bones at the knee by a hinge joint. There is also a knee cap called patella. The foot consist of various types of small bones which form ankle , middle part of foot and toes.
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    Sample Questions
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    Question : 1

    The forward and backward movement of our head is possible because of presence of

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    Question : 2

    ____________________ are attached to the upper part of the neck bone forming a rib cage .

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    Question : 3

    Which statement means 'Gait'?

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