slide1 l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Gordon Engle Tim Evans Sandra Thompson August 4, 1999 PowerPoint Presentation
Download Presentation
Gordon Engle Tim Evans Sandra Thompson August 4, 1999

Loading in 2 Seconds...

play fullscreen
1 / 11

Gordon Engle Tim Evans Sandra Thompson August 4, 1999 - PowerPoint PPT Presentation


  • 151 Views
  • Uploaded on

"Dem Bones" are Levers. Gordon Engle Tim Evans Sandra Thompson August 4, 1999. “Dem Bones” are Levers. Classes of levers Radius and ulna are levers Force is applied by muscles. Classes of levers. First class levers have the fulcrum between the weight and the force.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Gordon Engle Tim Evans Sandra Thompson August 4, 1999' - bern


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

"Dem Bones" are Levers

Gordon Engle

Tim Evans

Sandra Thompson

August 4, 1999

dem bones are levers
“Dem Bones” are Levers
  • Classes of levers
  • Radius and ulna are levers
  • Force is applied by muscles
classes of levers
Classes of levers
  • First class levers have the fulcrum between the weight and the force.
  • The ulna is a first class lever.
classes of levers4
Classes of levers
  • Second class levers have the weight between the fulcrum and the force.
  • Where is an example of a second class lever in the body?
classes of levers5
Classes of levers
  • Third class levers have the force between the fulcrum and the weight.
  • The radius is a third class lever.
the force is applied by muscles
The force is applied by muscles.
  • In the arm the biceps brachii and the triceps brachii work in opposition to each other to flex and extend the forearm.
biceps brachii
Biceps brachii
  • The origin is the name for the attachment to the bone that doesn’t move.
    • Long head is attached to the supraglenoid tubercle and glenohumeral labrum.
    • Short head is attached to the tip of the coracoid process of the scapula.
biceps brachii8
Biceps brachii
  • The insertion is the name for the attachment to the bone that does move.
    • Radial tuberosity
    • Bicipital aponeurosis
triceps brachii
Triceps brachii
  • Origin
    • Long head attaches to the infraglenoid tubercle of the scapula.
    • Lateral head attaches to the upper half of the posterior surface of the shaft of the humerus, and the upper part of the lateral intermuscular septum.
    • Medial head attaches to the posterior shaft of the humerus and lateral intermuscular septum
triceps brachii10
Triceps brachii
  • Insertion
    • Posterior surface of the olecranon process of the ulna
    • Deep fascia of the antebrachium
dem bones are levers11
“Dem Bones” are Levers
  • Classes of levers
  • Radius and ulna are levers
  • Force is applied by muscles