Joints

Question 1

Types of Fibrous Joints

Answer 1

Peridontal Ligament
Cranial Sutures
Interosseous Membrane

Question 2

Primary Cartilaginous Joint made up of what type of cartilage

Answer 2

Hyaline

Question 3

Secondary Cartilaginous Joint made up of

Answer 3

Hyaline and Fibrocartilage

Question 4

Primary Cartilaginous Joints are also called

Answer 4

Synchondrosis

Question 5

Secondary Cartilaginous Joints are also called

Answer 5

Symphysis

Question 6

Name the 6 Synovial Joints

Answer 6

Hinge
Saddle
Pivot
Condylar Ellipsoid
Ball and Socket
Plane

Question 7

In Superficial Hyaline Cartilage features

Answer 7

Flat Chondrocytes

Collage and Glycoproteins eg Lubrican

Question 8

In Transitional Hyaline Cartilage Layer features

Answer 8

Round Chondrocytes
Produce Proteoglycans such as Aggrecan
>75% Water

Question 9

What are glycoproteins

Answer 9

Lubricans

Proteins to which oligosaccharide chains are attached

Question 10

What are proteoglycans

Answer 10

Aggrecan

Proteins heavily glycosylated

Question 11

What are glycosaminoglycans or gags?

Answer 11

Hyaluronic Acid
Long unbranched Polysaccharides
Highly Polar/Attract Water

Question 12

Articular Cartilage average thickness

Answer 12

2-3mm

Question 13

Features of Synovium

Answer 13

Rich Capillary Network
No epithelial Lining
Direct Exchange of Oxygen

Question 14

Features of Synoviocytes Type A

Answer 14

Remove Debris

Contribute to Synovial Fluid Production

Question 15

Synoviocytes Type B Features

Answer 15

Fibroblast like

Main producer of synovial fluid

Question 16

Synovial Fluid Features

Answer 16

Viscous Fluid
Hyaluronic Acid and Lubrican
Fluid Component from Blood Plasma
Small Volumes
2 Hour Turnover

Question 17

What happens to Synovial Fluid with ageing

Answer 17

Viscosity increases
Slower Joint Movements
Reduced Lubrication
Water content decreases
Reduced Shock Absorption