Joints
Chapter 9
Joints (articulations)
= where bone meets bone
Classification:
Non-movable (synarthrosis)
Slightly movable (amphiarthrosis)
Freely movable (diarthrosis)
Synarthrosis
may be connected by
bone fusion, cartilage,
or fibrous connections
e.g. between the bones
of the skull, between
the teeth & jaws
Amphiarthrosis
may be connected by collagen fibers or
cartilage
e.g. between tibia & fibula, between
vertebrae
Diarthrosis
surrounded by
synovial fluid
e.g. elbow, ankle,
shoulder, hip
Accessory Structures
of Synovial Joints
Meniscus – fibrocartilage pad
Fat pad – packing material
for the joint
Ligament –attaches bone to
bone
Tendon – connects skeletal
muscle to bone
Bursa – sac filled with
synovial fluid that cushions
adjacent structures &
reduces friction
Fig. 9.1
Functional Classification of Synovial Joints
6 types