The Skeletal System
Axial Skeleton
Appendicular Skeleton
Axial Skeleton
Axial Skeleton
Axial Skeleton
Axial Skeleton
Axial Skeleton Hyoid Bone
Axial Skeleton
Axial Skeleton
Appendicular Skeleton
Appendicular Skeleton
Appendicular Skeleton
Appendicular Skeleton
Bone Tissue
Osteoblasts – bone forming cells
Osteocytes – The BONE CELLS
Osteoclasts – bone reabsorbing cells
Two Types of Bone Tissue
Compact Bone and Spongy Bone
Classification of Bones
Long Bones Short Bones Flat Bones
Irregular Bones
ProximalEpiphysis
Diaphysis
DistalEpiphysis
Features of Bone
Projections that form joints
Features of Bone
Projections that form joints
Projections that are sites of muscle & ligament attachment
Features of Bone
Projections that form joints
Projections that are sites of muscle & ligament attachment
Openings that allow blood vessels and nerves to pass
Features of Bone
Projections that form joints
Projections that are sites of muscle & ligament attachment
Openings that allow blood vessels and nerves to pass
Depressions
Structure of Bone
Bone Development & Growth
Two Categories of Bone Development
1.Intramembranous (Direct) – forms spongy bone and eventually may form compact bone from embryonic fibrous membrane
2.Endochondral - bone forms from cartilage; forms skull & flatbones
Before week 8 of fetal life, the human skeleton is all fibrous membrane & hyaline cartilage
Bone Development & Growth
Epiphyseal Plate – Growth Plate
Joints or Articulation
Joints – Three Types
Fixed Joint
Cartilaginous Joint
Synovial Joint
Synovial Joints
Broken Bone Repairs
Michael Paulus' Cartoon Skeletons