Quiz 1 Material

Question 1

What is synathroses

Answer 1

Immovable joints (fibrous ) such as sutures and gomphosis

Question 2

Ampiarthoses

Answer 2

Slightly movable (cartilaginous) , pubic symphyses , syndesmoses( coracol acromial joint ) and synchondroses ( ribs + sternum )

Question 3

Diarthroses

Answer 3

Freely movable 6 types hinge ball socket etc

Question 4

Prep+ deceleration

Answer 4

Eccentric

Question 5

Acceleration + acceleration

Answer 5

Concentric

Question 6

Follow thru and deceleration

Answer 6

Eccentric

Question 7

Kinetics

Answer 7

Force , torque , and moment arms

Question 8

Stress is

Answer 8

Distributed force expressed as pressure

Question 9

Strain is

Answer 9

Measurement of deformation

Question 10

Strain rate

Answer 10

Rate at which deformation loads r applied

Question 11

Visco elasticity

Answer 11

Characteristics of fluid and solid properties

Question 12

Tension and compression together lead to

Answer 12

Bending

Question 13

Bone is made of

Answer 13

Minerals such as calcium and phosphate and protein like collagen

Question 14

Structure of cortical bone (middle part )

Answer 14

Non porous , dense and stiff

Question 15

Structure of trabecular bone (end of bone )

Answer 15

Porous , less dense contributes to flexibility

Question 16

Bone growth is

Answer 16

Longitudinal and circumferential ( osteoblast and clast cells ) ( building and absorbing )

Question 17

What does wolf’s law say about bone

Answer 17

bone strength increases as bone force increases

Question 18

Stiffness of bone means

Answer 18

High load low deformation

Question 19

Flexible bone means

Answer 19

Low load high deformation

Question 20

Elastic region can

Answer 20

Go back to regular shape after force is applied

Question 21

Plastic region

Answer 21

Is stuff , defining point is yielding point

Question 22

T/F - bone will sustain microfractures under low repetitive loading

Answer 22

True

Question 23

When does fracture occur

Answer 23

When remodeling is outpaced by fatigue process

Question 24

Role of muscle activity on bone stress

Answer 24

Bone experiences compression both upward and downward, so muscle can level this out by tension , pulling the bone is opposite direction of compression force

Question 25

Ligaments and tendons

Answer 25

Lig = bone to bone and tendons =muscle to bone