Exam One

Question 1

What are the different planes of motion?

Answer 1

Sagittal - left and right
Frontal - front and back
Transverse - top and bottom
Diagnol - combination of more than one

Question 2

What are the different axes of rotation?

Answer 2

Frontal
Sagittal
Transverse

Question 3

Describe the frontal plane

Answer 3

Perpendicular to sagittal plane
Runs medial to lateral
Flexion and extension

Question 4

Describe the sagittal plane

Answer 4

Perpendicular to frontal plane
Runs anterior to posterior
Adduction and abduction

Question 5

Describe the transverse plane

Answer 5

Perpendicular to transverse plane
Runs superior to inferior, longitudinal
Internal and external rotation

Question 6

What is abduction ?

Answer 6

Movement away from the midline

Question 7

What is adduction?

Answer 7

Movement toward the midline

Question 8

What is circumduction?

Answer 8

Circular movement of a limb

Question 9

What movements are specific to the ankle?

Answer 9

Eversion vs Inversion

Dorsal flexion vs plantar flexion

Question 10

What movements are specific to the forearm?

Answer 10

Pronation and suppination

Question 11

What movements are specific to the shoulder girdle?

Answer 11

Depression vs elevation
Protraction vs retraction
Upward vs downward rotation

Question 12

What are the functions of the skeletal system?

Answer 12

Stores calcium
Protects vital organs
Support
Movement
Production of red blood cells

Question 13

What is stress?

Answer 13

Force that will result in the deformation of bones

Question 14

What is strain?

Answer 14

Force that results in compression and leads to distortion

Question 15

What is wolffs law?

Answer 15

Bone size and shape are influenced by the direction and magnitude of force applied

Question 16

What are the three classes of joints?

Answer 16

Fibrous - immovable - synarthrodial
Cartiligenous - slightly movable - amphiarthrodial
Synovial - freely movable - Diarthrodial

Question 17

What are the six types of diarthrodial joints?

Answer 17

Enarthrodial - Ball and socket
Ginglymus - Hinge
Sellar - saddle 
Trochoidal - pivot
Arthrodial - plane
Condyloidal - ellipsoid

Question 18

What is an example of a condyloidal joint?

Answer 18

Metacarpophalangeal joint

Question 19

What is an example of a sellar joint?

Answer 19

Carpometacarpal Joint

Question 20

What is an example of an arthrodial joint?

Answer 20

Intercarpal joint

Question 21

What is an example of a trochodial joint?

Answer 21

proximal radioulnar joint

Question 22

What is an example of a ginglymus joint?

Answer 22

Humeroulnar

Question 23

What is an example of an enarthrodial joint?

Answer 23

Shoulder

Question 24

What is mechanics?

Answer 24

Study of physical action of force

Question 25

What is static mechanics?

Answer 25

No motion or no acceleration

Question 26

What is dynamic mechanics?

Answer 26

Motion with acceleration

Question 27

What is force?

Answer 27

mechanical effort applied to a body that tends to produce acceleration

Question 28

What does a lever consist of?

Answer 28

Axis of rotation Resistance which must be overcome A point where force is applied

Question 29

What does a first class lever consist of?

Answer 29

Axis is between F and R | Force production - A closer to R

Question 30

What does a second class lever consist of?

Answer 30

R is between A and F | Force production

Question 31

What does a third class lever consist of?

Answer 31

F is between A and R Speed and range of motion Most common in human body

Question 32

What is mechanical advantage?

Answer 32

MA = FA/RA

Question 33

What is the calculation for leverage?

Answer 33

F X FA = R X RA

Question 34

What is kinetics?

Answer 34

Spatial and timing characteristics of movement with regard to force

Question 35

What is kinematics?

Answer 35

Spatial and timing characteristics without regard to force

Question 36

What are newtons three laws?

Answer 36

1st - object will remain in motion 2nd - F=M*A 3rd - Equal and opposite reaction

Question 37

What is impulse equal to?

Answer 37

Product of force and time over which it is applied

Question 38

What is linear force

Answer 38

Force applied in same direction as action line | One point of application

Question 39

What is concurrent force?

Answer 39

Forces applied to same point but different angles

Question 40

What are parallel forces?

Answer 40

Act parallel from different points of application

Question 41

What is inertia?

Answer 41

The property of matter by which it remains at rest or in motion

Question 42

What are the three moments of inertia?

Answer 42

Mass Area Polar

Question 43

What is mass moment?

Answer 43

Resistance to rotation around axis

Question 44

What is area moment?

Answer 44

Resistance to bending

Question 45

What is polar moment?

Answer 45

Resistance to twisting

Question 46

What are the forces that can modify motion?

Answer 46

Weight Contact forces Fluid forces

Question 47

What is friction?

Answer 47

Opposes efforts to slide or roll one body or object over another

Question 48

What are the three types of friction?

Answer 48

Starting friction Sliding friction - resists continued motion Rolling friction - allows objects to roll

Question 49

What is the coefficiant of friction?

Answer 49

Limiting friction/normal friction

Question 50

What is elasticity?

Answer 50

Ability to withstand forces and then return to size and shape

Question 51

What is the coefficient of elasticity?

Answer 51

Stress/strain Square root of bounce height/drop height

Question 52

Factors that influence coefficient of elasticity?

Answer 52

Surface involved Temperature Velocity of impact

Question 53

What are the factors that influence the path of a rebounding ball?

Answer 53

Force Elasticity Spin Impact angle