Understanding the three types of levers in the body

Understanding the three types of levers in the body

Understanding the three types of levers is key for your level 3 anatomy and physiology exam.  Further still, knowing these levers will help guide your planning and programming towards specific goals your clients have.

Many learners often tell us that this particular topic is tough to get your head around. Check out the short poem below and diagram showing the three types of  levers and where they show up in the body. Make sure to drop any questions below in the comments box as well! 🙂 

First up, all levers fall into one of three types of lever.

I know what you’re thinking? – How can we tell which lever is in which class?

The main difference is what order the different parts come in.

Every lever has three parts to every lever:

  1. the effort,

  2. the fulcrum,

  3. the load.

The position of these three parts varies in all three levers.

Key point:

Yes... there are 3 types of levers and each lever has 3 parts!

Use the following poem to remember the 3 types of levers and where each part is!

and use this in your brain dump [the first minute of your exam] to write down and recall this tricky topic!

60% Complete

Now take 2-minutes to read through the “ins & outs” to the 3 types of levers!

Class 1 Levers:

THERE WAS AN ELF CALLED EFL 

A Class 1 lever has the fulcrum placed between the effort and load. The movement of the load is in the opposite direction of the movement of the effort. This is the most common lever configuration. The effort in a class 1 lever is in one direction, and the load moves in the opposite direction. Note that the length of the effort arm can be greater than, equal to or less than the length of the load arm in a class 1 lever. Picture a classic see-saw and you have yourself a class 1 lever!

Class 2 Levers:

WHO WAS A CLUMSY LITTLE ELF 

A Class 2 lever has the load between the effort and the fulcrum. In this type of lever, the movement of the load is in the opposite direction as that of the effort. Note that the length of the effort arm goes all the way to the fulcrum and is always greater than the length of the load arm in a class 2 lever. Picture a wheel-barrow and you have yourself a class 2 lever!

Class 3 Levers:

HIS HEAD WAS SO BIG HE FEL OVER HIS FEET! 

A Class 3 lever has the effort between the load and the fulcrum. Both the effort and load are in the same direction. Note that the length of the load arm goes all the way to the fulcrum and is always greater than the length of the effort arm in a Class 3 lever. Picture a fishing rod and you have yourself a class 3 lever!

Below is an example of each lever in the body

 

[feature_box style="32" title="SUMMARY" alignment="center"]
There are three types or classes of levers, according to where the load and effort are located with respect to the fulcrum.

Class 1 has the fulcrum placed between the effort and load EFL

Class 2 has the load in-between the effort and the fulcrum ELF

Class 3 has the effort between the load and the fulcrum. FEL

[/feature_box]

Now Test Yourself:

3x Understanding Macronutrients and Micronutrients

Level 3 Anatomy and Physiology Questions below:

[NOTE: The answers are below the 3rd questions]

QUESTION 1: A class 3 lever has the _________ in the middle?

A. Effort

B. Load

C. Class 2

D. Fulcrum

LEARN MORE *** EXCLUSIVE OFFER *** L3 A&P REVISION MASTERY SERIES

QUESTION 2: What kind of lever system is a heel raise?

A. Class 1

B. Class 2

C. Class 3

D. The heel raise is not a lever

QUESTION 3: What is the correct poem to remember the 3 types of levers?

A. THERE WAS AN ELF CALLED EFL WHO WAS A CLUMSY LITTLE ELF. HIS HEAD WAS SO BIG HE FEL OVER HIS FEET! 

B. There was an elf called elf who was a clumsy little elf his head was so big his elf fell over his feet

C. I can’t remember the peom

D. The was an elf called efl who was a  clumsy little elf. His head was so big his elfed all over his feet.

Answers

Question 1= A, Question 2 = B, Question 3 = A

If you want more mock questions like this, then you can download your Revision Pass Pack. On day one you’ll get s 101 Level 3 A&P mock questions: DOWNLOAD NOW striaght to your email inbox.

On day two you’ll get the full HD video tutorial of module 1 of the level 3 A&P revision mastery series.  Then on day 3 of the Revision Pass Pack you’ll get our 5 Tactics To Dissolve Exam Day Stress and Anxiety.

The fastest way to accelerate your learning and revision is to check out the L3 A&P Revision Mastery Series. Here all 8 modules are covered in 8x full HD video tutorials, with accompanying cheat sheet to make revision even easier again and test your knowledge as you go! I’ve also packed in 5 BONUSES for you as well, click the link below:

L3 A&P Revision Mastery Series

Dedicated to your learning,

Hayley

Parallel Coaching

P.S. You can also find us on the following platforms:
Instagram: https://www.instagram.com/parallelcoaching
Facebook: https://www.facebook.com/ParallelCoaching
Twitter: https://twitter.com/ParallelCoach
YouTube: http://bit.ly/2F1Z1bs

Comments

comments