the skeletal system. axial skeleton appendicular skeleton

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