Presentation on theme: "ARTICULATIONS Joints in the Human Body. WHAT ARE ARTICULATIONS? Articulations are joints Places where two or more bones meet."— Presentation transcript:
ARTICULATIONS Joints in the Human Body
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
FIBROUS JOINTS - SYNARTHROTIC Two or more bones joined by fibrous connective tissue Can have very limited but usually no motion
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.
SYNDESMOSES In a syndesmosis joint, bones are farther apart than in sutures and they are also connected by ligaments.
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..
REVIEW: THE THREE FIBROUS JOINTS ARE???? Sutures Syndesmoses gomphoses
THE CARTILAGINOUS JOINTS AMPHIARTHROTIC JOINTS
CARTILAGINOUS JOINTS: Two or more bones connected by hyaline or fibrocartilage. This type of joint provides limited motion
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