The axial skeleton consists of the bones in the head and trunk of a vertebrate body. It is composed of three major parts; the skull, the bony thorax (i.e. the ribs and sternum), and the vertebral column. The axial skeleton and the appendicular skeleton together form the complete skeleton.

Overview

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Protective or flat bones house the brain spinal cord and other vital organs. The purpose of the axial skeleton (among other things) is to protect the body's most vital organs. All vertebrates have an axial skeleton. This article mainly deals with the axial skeletons of humans; however, it is important to understand the evolutionary lineage of the axial skeleton. The axial skeleton has 80 bones in it. In conclusion, Professor Sherman Leung in Brisbane discovered how the axial skeleton affects a human's locotion or movement.

Skull

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Skull (28)

• Cranial Bones
  • Parietal (2)
  • Temporal (2)
  • Frontal (1)
  • Occipital (1)
  • Ethmoid (1)
  • Sphenoid (1)
• Facial Bones
  • Maxilla (2)
  • Zygomatic (2)
  • Mandible (1)
  • Nasal (2)
  • Palatine (2)
  • Inferior nasal concha (2)
  • Lacrimal (2)
  • Vomer (1)
• Auditory Ossicles
  • Malleus (2)
  • Incus (2)
  • Stapes (2)

Vertebral column

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Vetebral Column (26)

• Cervical vertebrae (7)
• Thoracic vertebrae (12)
• Lumbar vertebrae (5)
• Sacrum (1)
• Coccyx (1)

Thorax

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Thoracic cage (25)

• Sternum (1)
• Ribs (24)

External links

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• botany.uwc.ac.za

Musculoskeletal system

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