| A | B |
|---|
| Musculoskeletal System | extends into all parts, Skull,Spine,ribs,sternum,shoulders and extremeties pelvis |
| Skull | Bony structure of the head, encloses and protects the brain |
| Cranium | Top,Back and sides of skull |
| Mandible | Lower Jaw |
| Maxillae | Fused bones of the upper jaw |
| Zygomatic | Cheek Bones |
| Nasal Bone | Nose |
| Anterior or facial bones of cranium | Mandible,Maxillae,Zygomatic,nasal |
| Spinal Column | Provides structure and support of body and houses & protects the spinal cord |
| Vertebrae | 33 vertebrae in spinal column seperate the bones of the spine |
| Cervical | Neck of the spine = 7 vertebrae |
| Thoracic | Thorax,ribs,upper back = 12 vertebrae |
| Lumbar | Lower back = 5 vertebrae |
| sacral | back wall of pelvis = 5 vertebrae |
| coccyx | Tailbone = 4 vertebrae |
| Thorax | Chest or the Thoracic Cavity which protects vital organs |
| Thoracic Cavity | Includes the Heart,Lungs and major blood vesels. It includes 12 pairs of ribs and vertebrae |
| Sternum | aka breastbone - in the Thoracic cavity-it is in front of 10 pairs of ribs. Three parts include the Manubrium(superior), Body(center) and Xiphoid Process(inferior tip) |
