ARTICULATIONS Joints in the Human Body WHAT ARE

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 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: Synchondrose s: 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