Structural and Material Properties

Question 1

Refers to how much strain is applied to tissue resulting to change or distortion in mechanical tissue length.

Answer 1

Deformation

Question 2

Refers to how much load is applied to tissue; y-axis of stress-strain curve

Answer 2

Load

Question 3

Resting static state where tissue is not really lengthened or loaded very much; off-load

Answer 3

Toe-region

Question 4

Region where tissue is lengthened and has the ability to go back to its original state.

Answer 4

Elastic region

Question 5

Region where tissue is lengthened and does not go back to its original state; microfailure

Answer 5

Plastic region

Question 6

Point where elastic and plastic region meet.

Answer 6

Yield point

Question 7

Macrofailure

Answer 7

Ultimate failure point

Question 8

Tensile stress or strength the muscle can tolerate.

Answer 8

Failure load

Question 9

Failure load can be high load alone. True or false

Answer 9

True

Question 10

Ligaments have maximal elasticity. True or false

Answer 10

False; Ligaments have minimal elasticity.

Question 11

Tendons have more elasticity than ligament. True or false

Answer 11

True

Question 12

Older people’s elasticity range shrinks. True or false

Answer 12

True

Question 13

Younger people have more elasticity because they have more collagen. True or false

Answer 13

True

Question 14

Plastic region occurs before yield point. True or false

Answer 14

False; It occurs after yield point.

Question 15

Challenge the patients in this region.

Answer 15

Plastic region

Question 16

To increase muscle strength and endurance, must bring it past the yield point but not beyond failure point for it to adapt and increase in density, fibroblastic activity, and osteoblastic activity. True or false

Answer 16

True