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ARTICULATIONS

ARTICULATIONS. Joints in the H uman B ody. What are articulations?. Articulations are joints Places where two or more bones meet. There are 3 major categories:. Fibrous joints, aka synarthrotic joints Cartilaginous joints, aka amphiarthrotic Synovial joints, aka diarthrotic joints.

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ARTICULATIONS

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  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 syndesmosisjoint, 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

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