Chapter 9: Joints

Question 1

List and describe the different functional classes of joints

Answer 1

Diarthrosis: free movement (examples: elbow & hip)
Synarthrosis: no movement (examples: sutures of the skull & Gomphosis)
Amphiarthrosis: some movement (examples: between vertebrate & pubic symphysis)

Question 2

Describe the three structural types of joints

Answer 2

Fibrous: joined by fibrous connective tissue (examples: skull sutures & Gomphosis)
Synovial: space between bones is filled with synovial fluid (examples: ALL diarthroses; shoulder, hip, elbow, knee)
Cartilaginous: joined by hyaline cartilage and fibrocartilage (examples: epiphyseal plates & intervertebral disc)

Question 3

List the three types of diarthroidal joints

Answer 3

Uniaxial, biaxial, multiaxial

Question 4

Distinguish between a synchondrosis and symphysis

Answer 4

synchondrosis = hyaline cartilage

symphysis = fibrocartilage