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The Skeletal System - The Bones in Your Body

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What does our skeleton do to the body?

  • Our bones are responsible for the manufacture and production of white blood cells, the red blood cells, and the platelets
  • They serve as the framework and support to the body.
  • They are responsible for the proper movement of the body.
  • They protect the various body organs.
  • They are a good storage of the body's minerals and fats.


The Bones in our Body

Our adult body is composed of 206 bones. The bones are classified into 2 major groups:

  • The Axial Skeleton
  • The Appendicular Skeleton

The Axial Skeleton

The axial skeleton is made up of the bones in the skull, bones in the middle ear called ossicles, the bones in the vertebra, the bones in the neck and in the ribcage. There are 80 of them found in these parts of the skeleton.

8 bones in the skull or cranial bones

2 Parietal bones. These are the bones found at the back of your forehead located at each side of your head.

2 Temporal bones. These are the bones found under the parietal bones.

Frontal bone. This is the bone of the forehead. It is also part of your upper eye sockets.

occipital bone

ethmoid bone

sphanoid bone

14 bones in the face. The bones in the face form the skull and provide entry points to the body.

2 maxillar bones

2 zygomatic bones

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1 mandibular bone

2 nasal bones

2 platine bones

2 inferior nasal concha

2 lacrimal bones

vomer bone

6 middle ear ossicles (there are 3 in each ear)

2 mallius bones

2 incus bones

2 stape bones

26 bones of the vertebra:

24 ribs

sternum or chest bone

1 hyoid bone in the neck

The Appendicular Skeleton

The appendicular skeleton is made up of bones in the shoulders, the arms and legs. There are 126 of them found in these parts of the body.

Types of Bones

There are 4 types of bones: the long bones, short bones, flat, and irregular bones.

The long bones are called such because they are longer than they are wide. Examples are the thigh bones, the legs, the arms and forearms.

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