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Biomechanics & Surgery: Tissue Mechanics III Cartilage

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Biomechanics & Surgery: Tissue Mechanics III Cartilage

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Questions and Answers

What is the primary factor that determines the effectiveness of lubrication in a bearing?

The viscosity of the lubricant

The stiffness of the bearing material

The geometry of the bearing

All of the above (correct)

What is the primary function of boundary lubrication?

To create a fluid-film layer between surfaces

To reduce friction and prevent wear (correct)

To enhance the mechanical properties of the cartilage

To increase the load-bearing capacity of the joint

What is the relationship between friction and wear at the cartilage surface according to the text?

Friction is directly proportional to wear

Wear is independent of the level of friction

Friction is coupled with wear at the cartilage surface (correct)

Friction and wear are independent of each other

What is the primary factor that determines the mode of lubrication in human joints?

The applied loads and relative velocity of the bearing surfaces Signup and view all the answers

What is the primary reason why cartilage is able to sustain a wide range of loading conditions with minimum wear?

The unique mechanical properties of the cartilage Signup and view all the answers

What is the primary mechanism by which damage to cartilage occurs in osteoarthritis (OA) according to the text?

Disruption of the mechanical environment of the joint Signup and view all the answers

What is the primary function of the boundary lubricant in a joint?

To reduce friction and prevent wear at the cartilage surface Signup and view all the answers

What is the primary mode of lubrication that dominates under severe loading conditions in a joint?

Boundary lubrication Signup and view all the answers

What is the primary factor that determines the transition between boundary lubrication and fluid-film lubrication in a joint?