Joints

Question 1

Structural classification

Answer 1

Fibrous joints
Sutures
Syndesmosis
Gomphosis

Cartilaginous
Primary cartilaginous joints-synchondrosis
Secondary cartilaginous joints - symphysis or amphiarthroses

Question 2

Functional classification

Degree of mobility

Answer 2

Synarthroses (immovable)
Amphiarthroses slightly movable
Secondary cartilaginous joints
Diarthroses
Freely movable
Synovial joints

Question 3

Synarthroses

Answer 3

Fixed joints
No movement
Articular surfaces joined by fibrous tissue
Edges of bone dovetailed into one another like skull

Question 4

Amphiarthroses

Answer 4

Slight movement is possible
Articulating bones covered by hyaline cartilage
Pad of fibrocartlage between bone surfaces to hold bones and cartilages in place
Cartilage acts as shock absorber
Intervertebral disc between bodies of vertebrae

Question 5

Diarthroses

Answer 5

Freely movable
Movement restricted by shape of articulating surfaces and ligaments- elastic connective tissue
Synovial joint has a fluid filled cavity between the Articular surface
Covered by Articular cartilage
Synovial fluid is produced by the membrane
Synovial membrane lines the cavity except the Articular surfaces

Question 6

Primary cartilaginous joints

Answer 6

Joints between epiphysis and diaphysis of long bone
Costochondral joints
Xiphisternal joints
First chondrosternal joint
Spheno occipital joint