Question 1

Cartilage primarily receives its nutrition from ____________________.

Accepted Answer

A)  its high level of permeability 
B)  diffusion 
C)  a process of joint loading and unloading

Question 2

How is the synovial fluid within a joint formed? Of what is it composed?

Accepted Answer

The answer of How is the synovial fluid within a...

Question 3

Define modulus of elasticity,stiffness,brittleness,and ductility.

Accepted Answer

The answer of Define modulus of elasticity,stiffness,brittleness,and ductility....

Question 4

When describing the biomechanical properties of cancellous and cortical bone,which of the following statements is true?

Accepted Answer

A)  Cancellous bone is stiffer than cortical bone and can withstand less strain before failure. 
B)  Cortical bone is stiffer than cancellous bone and can withstand less strain before failure. 
C)  Cancellous bone is stiffer than cortical bone and can withstand more strain before failure. 
D)  Cortical bone is stiffer than cancellous bone and can withstand more strain before failure.

Question 5

To increase a patient's wrist extension range of motion by using an accessory motion gliding technique,the therapist would want to perform a(n)____________________.

Accepted Answer

A)  posterior glide of the carpals on the radius 
B)  anterior glide of the carpals on the radius 
C)  anterior glide of the radius on the carpals

Question 6

Which of the following statements is true regarding articular cartilage injury?

Accepted Answer

A)  A deep cartilage lesion does not extend beyond the tidemark. 
B)  A deep laceration may heal by forming new fibrocartilage. 
C)  A superficial lesion is likely to heal faster than a deep one. 
D)  A cartilage injury cannot heal.

Question 7

Which of the following statements is true concerning the close-packed position of any joint?

Accepted Answer

A)  Capsular structures are loose. 
B)  Ligaments around the joint are slack. 
C)  The joint is relatively easy to separate with distraction. 
D)  There is a maximum area of surface contact occurring.

Question 8

When a bone is repeatedly loaded with low-level forces over an extended period of time,fatigue fractures may occur within the bone.This is due to:

Accepted Answer

A)  Increased stiffness,decreased yield strength,increased permanent deformation 
B)  Decreased stiffness,increased yield strength,no effect on deformation 
C)  Decreased stiffness,decreased yield strength,increased permanent deformation 
D)  Increased stiffness,increased yield strength,no effect on deformation

Question 9

Define stress and strain.

Accepted Answer

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Exam 2: Joint Structure and Function