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Skull:

The bony part of our head is called skull. Skull protects the brain and our main sense organs like eyes, ears and nose. The skull is made of 22 bony plates joined together. Skull also gives shape to our head.

 

Backbone

  • The backbone is a long, hollow, rod-like structure running from the neck to the hips , inside our body.
  • The scientific name of backbone is vertebral column.
  • Backbone forms the main supporting structure of the body. It is made up of 33 small bones placed one over the other.
  • Small bones which make up the backbone are called vertebrate. Between the various vertebrae of backbone are the discs of cartilage (soft bone).
  • Backbone protects the spinal cord from damage.
  • Backbone attaches shoulder bones, ribs, and hip bone.
  • Backbone supports the head at its top.

 

Bones of the Hand:

  • Hand is made up of three parts: wrist, palm and fingers.
  • Wrist is made up of 8 small bones known as Carpals.
  • Palm of hand is composed of 5 longer bones known as metacarpals.
  • The finger(including thumb) are made of jointed bones called phalanges.
  • The wrist bones form movable joint with the bones of forearm and due to this our wrist is flexible.

 

Rib Cage:

  • It is formed by the joining of chest bone and the backbone joint to form a box.
  • There are 12 pairs of  ribs in the chest of our body.
  • Their is a small bone called breast bone in the chest region, in front of our body.
  • The hollow, bony structure formed by the ribs is called ‘rib cage’.
  • The rib cage protects the delicate internal organs like heart,liver and lungs.
  • Rib cage takes part in our breathing movements.

 

Shoulder Bones

  • Two bones which are prominent at the back are known as the shoulder bones.
  • There are two shoulder bones: Collar bone and Shoulder blade.
  • The collar bone is a long, curved bone. One end of the collar bone is attached to the shoulder blade and the other end of collar bone is fixed to the breast bone of rib cage.
  • Collar bone on the two sides of the neck keep the shoulders apart.
  • Each shoulder blade has a cup-shaped socket.
  • Shoulder blades attach the arms to our body.
  • Shoulder blades provide sites for muscle attachments which move the arms, neck and upper part of the body.

 

Pelvic Bones or Hip bone:

  • The hip bone forms a large, basin-shaped frame at the lower end of the backbone , to which the legs are attached.
  • Portion of your body below the stomach is enclosed by the Pelvic bones.
  • The hip bone has two sockets (hollow spaces) on the two sides of its lower part.
  • The thigh bones of our legs are joined to the hip bone by the ball and socket joints.
  • Hip bone supports and protects the lower organs of the body such as intestines, urinary bladder and internal sex organs.
  • Hip bone attaches the leg to our body.
  • This part helps us to sit.

 

Summary of different parts of Skeleton

 

Part of Skeleton

 

Where are they Found

 

How Many Bones

 

Function

 

Skull

Bony part of the Head

22 bony plates

It protects the brain and also protects some organs like ear, eye, nose.

It also give shape

 

Backbone or Vertebral Column

Long hollow rod like structure running from neck to Hip

33 small bones

Provides support to body and Head. Attaches shoulder bone to Hip

 

Shoulder Bone

It is part of the body where shoulders are attached

 

2

 

Keeps the shoulder apart 

  

Rib Cage

 

Ribs are curved bones of the chest.

Hollow bone structure formed by the ribs is called the rib cage

 

12 pair of ribs

It protects internal organs like Heart, Lungs and Liver.

It also helps in breathing movement

  Hip or Pelvic Bone

They enclose portion of body below the stomach

 

Support lower organs like Intestine attaches legs

 

             Cartilages

Part of the skeleton which is not as hard as the bone and can be bent

 

 

 

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo