Arthrology

Question 1

What are the 3 types of joints

Answer 1

• Fibrous
• Cartilaginous
• Synovial

Question 2

Describe fibrous joints

Answer 2

• Bones joined by fibrous connective tissue
• Designed for stability
• Examples: Sutures - between flat bones of skull, Gomphosis - between teeth and bony sockets,
  Syndesmosis - all other fibrous joints

Question 3

Describe cartilanginous joints

Answer 3

• Bones joined by cartilage
• Designed for stability
• 2 subclasses:
  
  • Symphysis - fibrocartilage, eventaully ossify with age, pelvic symphysis, mandibular symphysis, IV discs
  • Synchondrosis - hyaline cartilage, temporary joints, physeal cartilage

Question 4

Describe synovial joints

Answer 4

• Designed for movement
• No tissue directly joins bones where they contact one another
• Components - synovial capsule, joint cavity, synovial fluid, articular cartilage, accessory structures

Question 5

Describe ligaments

Answer 5

• Bands of connective tissue that join bone to bone
• Extracapsular - fibrous portion of joint capsule, forms regional thickenings called collateral ligaments
• Intracapsular - found in coxal, genual, carpal, and tarsal joints

Question 6

How many ligaments and menisci are contained in the genual joint

Answer 6

• 10 ligaments - 8 intracapsular, 2 extracapsular

- 2 menisci