Joint Classification
, Introduction
• A joint (articulation) is a union or junction
between two or more bones or rigid parts of
the skeleton.
• Joints exhibit a variety of forms and functions.
• Some joints have no movement; others allow
only slight movement, and some are freely
movable, such as the glenohumeral (shoulder)
joint.
, Classification of Joints
• The structural classification of joints
– Fibrous joints (bones held together by dense
collagen fibers)
– Cartilaginous joints (bones held together by
cartilage)
– Synovial joints (bones held together by
ligaments)
• The functional classification of joints
– Synarthrosis (an immovable joint)
– Amphiarthrosis (a slightly movable joint)
– Diarthrosis (a freely movable joint)
, Fibrous Joints
• Lack a synovial cavity
• The articulating bones are held very closely together
by dense irregular connective tissue
• Fibrous joints permit little or no movement
• Three types of fibrous joints
– Sutures
– Syndesmoses
– Gomphoses
, Introduction
• A joint (articulation) is a union or junction
between two or more bones or rigid parts of
the skeleton.
• Joints exhibit a variety of forms and functions.
• Some joints have no movement; others allow
only slight movement, and some are freely
movable, such as the glenohumeral (shoulder)
joint.
, Classification of Joints
• The structural classification of joints
– Fibrous joints (bones held together by dense
collagen fibers)
– Cartilaginous joints (bones held together by
cartilage)
– Synovial joints (bones held together by
ligaments)
• The functional classification of joints
– Synarthrosis (an immovable joint)
– Amphiarthrosis (a slightly movable joint)
– Diarthrosis (a freely movable joint)
, Fibrous Joints
• Lack a synovial cavity
• The articulating bones are held very closely together
by dense irregular connective tissue
• Fibrous joints permit little or no movement
• Three types of fibrous joints
– Sutures
– Syndesmoses
– Gomphoses
