Unit 2- Movement Analysis

Question 1

State 4 parts of a lever

Answer 1

Lever arm, fulcrum, load and effort

Question 2

What is the lever arm

Answer 2

The bone

Question 3

What is the fulcrum

Answer 3

The joint (where the lever rotates)

Question 4

What is the load

Answer 4

The weight of resistance to be moved (either a weight or body weight)

Question 5

What is the effort

Answer 5

Force applied to lift the load (muscle)

Question 6

What are the names of each lever

Answer 6

1st class, 2nd class, 3rd class

Question 7

What is the load arm

Answer 7

Distance from the fulcrum to the load

Question 8

What is the effort arm

Answer 8

Distance from fulcrum to the effort

Question 9

What is mechanical advantage

Answer 9

When large loads can be lifted easily with little effort , smaller range of movement

Question 10

What is mechanical disadvantage

Answer 10

When large loads can be lifted but with most effort creating a bigger faster movement, there is a greater range of movement

Question 11

What is a plane

Answer 11

Imaginary line dividing the body in two

Question 12

What is an axis

Answer 12

Imaginary straight line around which the body rotates

Question 13

Name the 3 types of planes found in the body

Answer 13

Sagittal frontal transverse

Question 14

Name the 3 axis found in the body

Answer 14

Sagittal frontal vertical

Question 15

What plane goes with the frontal axis

Answer 15

Sagittal

Question 16

What plane goes with the sagittal axis

Answer 16

Frontal

Question 17

What plane goes with the vertical axis

Answer 17

Transverse

Question 18

Acronym to remember plane and axes

Answer 18

Falling sideways = frontal sagittal
Spinning forwards = sagittal frontal
Twisting vertically = transverse vertical

Question 19

What is the frontal plane

Answer 19

Divides you into front and back

Question 20

What occurs at the sagittal axis

Answer 20

Adduction and abduction

Question 21

What is the sagittal plane

Answer 21

Divides you into left and right

Question 22

What occurs at the frontal axis

Answer 22

Flexion and extension

Question 23

What is the traverse plane

Answer 23

Divides into top and bottom

Question 24

What movement occurs at the vertical axes

Answer 24

Rotation

Question 25

Where does 1st class lever tend to be

Answer 25

Neck joint
Or extension at elbow

Question 26

Where does 2nd class lever tend to be

Answer 26

Ball of food joint

Question 27

Where does 3rd class lever tend to be

Answer 27

Flexion at elbow