Lever System

Question 1

What is a Fulcrum

Answer 1

Point of a movement or pivot, generally at the centre of a joint

Question 2

What is load?

Answer 2

The bodies weight or an external object

Question 3

What is the Effort

Answer 3

Muscular force to move the load

Question 4

Describe F-L-E?

Answer 4

First class middle - Fulcrum
Second Class middle - Load
Third class middle - Effort

Question 5

What are the advantages and disadvantages of first class lever?

Answer 5

Advantages - strong, stable

Disadvantages - slow acting movement, limited flexibility

Question 6

What are the advantages and disadvantages of second class lever?

Answer 6

Advantages - strong, stable

Disadvantages - slowing acting movement, limited flexibility

Question 7

What are the advantages and disadvantages of third class lever?

Answer 7

Advantages - large range of motion, movement is fast

Disadvantages - the amount of force applied must always exceed the weight of the load.

Question 8

Sagittal plane

Answer 8

A vertical plane, which passes from front to rear separating the body into right and left parts

Question 9

Frontal plane

Answer 9

Passes from side to side at right angles to the sagittal plane, which separates the body into a front and back section

Question 10

Transverse planes

Answer 10

A horizontal plane that separates the body into upper and lower parts.