Joint Types

Question 1

Fibrous Joints

Answer 1

Very stable, least mobile

1. Sutures (scalp)
2. Syndesmosis (e.g. interosseous membrane),
3. Gomphosis (teeth)

Question 2

Cartilaginous

Answer 2

Midway between stability and movement

1. Primary cartilaginous: Ephiphysis
2. Secondary cartilaginous: Pubic symphysis, IV discs (MIDLINE STRUCTURES)

Question 3

Synovial Joints - Name 6

Answer 3

Plane, hinge, condyloid, saddle, ball and socket, pivot

Question 4

Plane joint

Answer 4

Intertarsal/carpal joints

Gliding and sliding movements

Question 5

Pivot joint

Answer 5

Atlanto-axial joint

Question 6

Ball and socket joint

Answer 6

Glenohumeral joint

Question 7

Saddle joint

Answer 7

Carpometacarpal joint

Question 8

Hinge joint

Answer 8

Knee

Question 9

Condyloid joint

Answer 9

Metacarpal-phalangeal joint

Question 10

Components of a synovial joint

Answer 10

Fibrous capsule, synovial membrane (formed from synovial cells which secrete synovial fluid), joint space, hyaline/articular cartilage

Question 11

Functions of synovial fluid

Answer 11

Phagocytosis
Lubrication --> Achieved through GAGs
Antimicrobial 
Nutrition
Transportation
Shock absorption

Question 12

What are bursa?

Answer 12

A thin synovial membrane filled with fluid. Acts to reduce frictional forces between bones and surrounding soft tissues.

Question 13

What are tenosynovium?

Answer 13

A double layer of synovial membrane which surrounds tendons as they change direction. A thin layer of synovial fluid is found inbetween acting to reduce friction and improve gliding.
Subject to wear due to repetitive forces