A&P Theory CH7 Flashcards
Joints According to Structure and Function
Articulation
Where 2 bones meet (joints)
Synarthrosis
No movement
Amphiarthrosis
some/partial movement
Diarthrosis
Free Movement
Syndesmosis
A type of joint where two adjacent bones (tibia + fibula) are joined by a membrane or ligament
Synarthrosis (No Movement)
Fibrous
Sutures
Fibrous connection plus interlocked surfaces
Example:
Between the bones of the skull
Synarthrosis (No Movement)
Fibrous
Gomphosis
Fibrous connections plus insertion in the bony socket (alveolus)
Example:
Between the teeth and bony sockets in the maxillae and mandible
Synarthrosis (No Movement)
Cartilaginous
Synchondrosis
The interposition of cartilage bridge or plate
Example:
Between the first pair of ribs and sternum
Amphiarthrosis
(Little Movement)
Fibrous
Syndesmosis
Ligamentous connection
Examples:
Between the tibia and fibula
Amphiarthrosis
(Little Movement)
Cartilaginous
Symphysis
Connection by a fibrocartilage pad
Example:
Between the two pubic bones
Diarthrosis
(Free Movement)
Synovial
Complex joint bounded by the joint capsule and containing synovial fluid
Example:
The knee, between the femur and tibia
Cartilaginous
Two bones joined by a piece of cartilage between them
Fibrous
Joined by a connective fibrous sheath of some kind, no joint cavity.
Sutures
Fibers between the bones hold skull sutures.
Gomphosis
Roots of teeth into the bones anchored by periodontal ligament.
Syndesmosis
Bones are held together by a ligament (interosseous membrane) like the radius and ulna.
Cartilaginous
Two bones joined by a piece of cartilage between them.
Synovial
Two bones joined by a joint capsule and filled with synovial fluid.
Synovial joints
Most of the larger joints are synovial like the shoulder, elbow, hip, and knee.
