1. ARTICULATIONS Joints in the Human Body

2. WHAT ARE ARTICULATIONS?  Articulations are joints  Places where two or more bones meet

3. THERE ARE 3 MAJOR CATEGORIES:  Fibrous joints, aka synarthrotic joints  Cartilaginous joints, aka amphiarthrotic  Synovial joints, aka diarthrotic joints

4. FIBROUS JOINTS - SYNARTHROTIC  Two or more bones joined by fibrous connective tissue  Can have very limited but usually no motion

5. THREE TYPES OF FIBROUS JOINTS SUTURES: located between bones of the skull. They are immovable. FONTANELS are areas of unossified bone in children under two years old.

6. SYNDESMOSES In a syndesmosis joint, bones are farther apart than in sutures and they are also connected by ligaments.

7. GOMPHOSES A Gomphosis is a “peg” held in a socket by fibrous tissue. Teeth held in the maxilla and mandible by periodontal ligaments are examples..

8. REVIEW: THE THREE FIBROUS JOINTS ARE????  Sutures  Syndesmoses  gomphoses

9. THE CARTILAGINOUS JOINTS AMPHIARTHROTIC JOINTS

10. CARTILAGINOUS JOINTS:  Two or more bones connected by hyaline or fibrocartilage.  This type of joint provides limited motion

11. TWO TYPES OF CARTILAGINOUS JOINTS:  Synchondroses:  Bones connected by hyaline cartilage  Little or no motion  Ex: epiphyseal plates  Symphyses:  Bones connected by fibrocartilage  Provide slight motion  Ex: vertebrae and pubic bones