Connective Tissue Physiology

Question 1

What is the function of tendon?

Answer 1

connect muscle to bone

Question 2

what is the function of ligament?

Answer 2

connects bone to bone

Question 3

What fibers do tendon and ligament have?

Answer 3

parallel fibers

Question 4

what represents stress on the stress-strain curve?

Answer 4

Load/area

Question 5

What represent strain on the stress-strain curve?

Answer 5

displacement/ original length

Question 6

What are the three distinct regions?

Answer 6

Toe region
elastic range
plastic range

Question 7

What is the toe region?

Answer 7

nonlinear deformation of the tendons and ligaments as they are initially stretched

Question 8

What is the elastic range?

Answer 8

stretched tissues return back to original length

Question 9

What is the plastic range?

Answer 9

tissue does not return to original length

Question 10

What % of toe region?

Answer 10

about 2% of physiological range

Question 11

what % of elastic range?

Answer 11

about 4% of deformation

Question 12

What can cause failure of tissue?

Answer 12

Overtime if a repeated amount of that repetitive microfailure in the tissue can lead to changes in the mecahnical properties and eventually failure of the tissue

Question 13

What is yield point?

Answer 13

Change between elastic and plastic region

Question 14

What is the ultimate failure point?

Answer 14

Tissue can no longer deform and causes tissues to breakdown or fail

Question 15

what is creep?

Answer 15

increasing deformation under constant load

Question 16

What is stress relaxation?

Answer 16

apply constant deformation, decreased force levels

Question 17

What is cyclic loading?

Answer 17

when a tissue is loaded and unloaded it follows slightly different curves