Biomechanics: The Mechanics of Biological Tissues for Biomedical Engineering

Question 1

Which of the following is NOT a mechanical property of biological tissues?

Accepted Answer

Electrical conductivity

Answer

Elasticity

Answer

Tensile strength

Answer

Viscosity

Question 2

Which property is NOT associated with mechanical behavior of biological tissues?

Accepted Answer

Electrical conductivity

Answer

Tensile strength

Answer

Compression strength

Answer

Shear strength

Question 3

The Young's modulus of a material is a measure of its:

Accepted Answer

Stiffness

Answer

Strength

Answer

Elasticity

Answer

Viscosity

Question 4

The Poisson's ratio of a material measures its:

Accepted Answer

Lateral strain relative to axial strain

Answer

Axial strain relative to lateral strain

Answer

Shear strain relative to axial strain

Answer

Shear strain relative to lateral strain

Question 5

Which tissue exhibits the highest compressive strength?

Accepted Answer

Bone

Answer

Cartilage

Answer

Ligament

Answer

Muscle

Question 6

In a linear elastic material, the relationship between stress and strain is:

Accepted Answer

Linear

Answer

Exponential

Answer

Logarithmic

Answer

Parabolic

Question 7

Which of the following is NOT a fundamental mechanical property of biological tissues?

Accepted Answer

Conductivity

Answer

Strength

Answer

Elasticity

Answer

Viscoelasticity

Question 8

Which material is frequently utilized in biomedical implants due to its optimal combination of strength and biocompatibility?

Accepted Answer

Titanium

Answer

Stainless steel

Answer

Polyethylene

Answer

Polyurethane

Question 9

What is the primary biological function of viscoelasticity in soft tissues?

Accepted Answer

Energy storage and dissipation

Answer

Lubrication

Answer

Temperature regulation

Answer

Signal transduction

Question 10

How does cross-linking affect the mechanical properties of a biological tissue?

Accepted Answer

Increases strength and stiffness

Answer

Decreases strength and stiffness

Answer

Increases elasticity

Answer

Decreases viscoelasticity

Question 11

Which of the following is NOT a mechanical property of biological tissues?

Accepted Answer

Porosity

Answer

Strength

Answer

Elasticity

Answer

Viscoelasticity

Question 12

The Young's modulus of a material is a measure of its:

Accepted Answer

Stiffness

Answer

Strength

Answer

Toughness

Answer

Viscoelasticity

Question 13

The Poisson's ratio of a material is a measure of its:

Accepted Answer

Tendency to expand in one direction when compressed in another

Answer

Ability to resist deformation

Answer

Energy dissipation during deformation

Answer

Rate of deformation under a given load

Question 14

Viscoelasticity is a property of biological tissues that:

Accepted Answer

Exhibits both elastic and viscous behavior

Answer

Is independent of time and temperature

Answer

Can be completely described by Hooke's law

Answer

Is only found in soft tissues

Question 15

Identify the major limitations in our current understanding of the mechanical properties of biological tissues and describe the key future research directions in this field.

Accepted Answer

Insufficient understanding of the role of the extracellular matrix in tissue mechanics

Accepted Answer

Lack of reliable and reproducible measurement techniques for tissue mechanical properties

Accepted Answer

Limited knowledge of tissue mechanical behavior under dynamic loading

Accepted Answer

Inadequate ability to predict the long-term performance of biomedical devices and implants in the body

Question 16

How does the viscoelasticity of a material impact its response to dynamic loading?

Accepted Answer

It causes the material to exhibit creep and stress relaxation

Answer

It exclusively increases the material's stiffness

Answer

It solely decreases the material's damping capacity

Answer

It has no influence on the material's response

Question 17

What is the fundamental purpose of a biomedical implant?

Accepted Answer

To restore or enhance the function of a compromised biological structure

Answer

To exclusively deliver medication

Answer

To solely monitor vital signs

Answer

To primarily assist with mobility

Question 18

Which of the following characteristics is a fundamental mechanical property of biological tissues?

Accepted Answer

Viscoelasticity

Answer

Luminosity

Answer

Hydrophobicity

Answer

Conductivity

Question 19

How does the strength of a biological tissue influence the design of a biomedical implant?

Accepted Answer

It determines the maximum load that the implant must withstand

Answer

It exclusively determines the shape of the implant

Answer

It solely determines the size of the implant

Question 20

Which of the following is a prominent example of a viscoelastic material?

Accepted Answer

Cartilage

Answer

Steel

Answer

Water

Answer

Glass

Question 21

In what way does the elasticity of a biological tissue affect its function?

Accepted Answer

It allows the tissue to regain its original shape after deformation

Answer

It exclusively makes the tissue resistant to tearing

Answer

It solely helps the tissue to absorb energy

Question 22

Which of the following presents a substantial challenge in the field of biomechanics?

Accepted Answer

The inherent complexity of biological tissues

Answer

The scarcity of available research

Answer

The excessive cost of experimentation

Question 23

What is a primary advantage of employing computers in biomechanics?

Accepted Answer

They facilitate the execution of intricate simulations

Answer

They completely eliminate the need for animal testing

Answer

They are considerably less expensive than human testing

Answer

They are inherently more accurate than human testing

Question 24

What is the anticipated future of biomechanics?

Accepted Answer

It is projected to play a significant role in the development of advanced medical devices and treatments

Answer

It is likely to remain a niche and specialized field

Answer

It is expected to be overshadowed by other emerging research fields