Chapter 7 Laboratory Experiences

1. Study anatomical models of the shoulder, elbow, and wrist. Be able to locate and identify the major bones, muscle attachments, and ligaments. (The bones are also viewable on the Dynamic Human CD, skeletal system, 3D viewer: thoracic.)

   Bones articulating at the glenohumeral joint:
   

   Bones articulating at the sternoclavicular joint:
   

   Bones articulating at the acromioclavicular joint:
   

   Bones articulating at the coracoclavicular joint:
   

   Ligaments crossing the glenohumeral joint:
   

   Ligaments crossing the sternoclavicular joint:
   

   Ligaments crossing the acromioclavicular joint:
   

   Ligaments crossing the coracoclavicular joint:
   

   Muscles crossing the glenohumeral joint:
   

2. With a partner, use a goniometer to measure wrist range of motion in flexion and hyperextension, with the fingers both completely flexed and completely extended. Explain your results.

   Flexion ROM with fingers in full flexion: 
   

   Hyperextension ROM with fingers in full flexion: 
   

   Flexion ROM with fingers in full extension: 
   

   Hyperextension ROM with fingers in full extension: 
   

   Explanation:
   

3. Perform pull-ups using an overhand grip and using an underhand grip. Explain which is easier in terms of muscle function.

   Which is easier? 
   

   Explanation:
   

4. Perform push-ups using wide, medium, and narrow hand placements. Explain which is easiest and which is hardest in terms of muscle function.

   Which is easiest? 
   

   Which is hardest? 
   

   Explanation:
   

5. With a partner, use a goniometer to measure both active and passive range of motion at the shoulders of the dominant and nondominant arms in flexion, hyperextension, abduction, and horizontal abduction. Explain your results.

   Dominant arm active ROM in flexion: 
   

   Dominant arm active ROM in hyperextension: 
   

   Dominant arm active ROM in abduction: 
   

   Dominant arm active ROM in horizontal abduction: 
   

   Dominant arm passive ROM in flexion: 
   

   Dominant arm passive ROM in hyperextension: 
   

   Dominant arm passive ROM in abduction: 
   

   Dominant arm passive ROM in horizontal abduction: 
   

   Nondominant arm active ROM in flexion: 
   

   Nondominant arm active ROM in hyperextension: 
   

   Nondominant arm active ROM in abduction: 
   

   Nondominant arm active ROM in horizontal abduction: 
   

   Nondominant arm passive ROM in flexion: 
   

   Nondominant arm passive ROM in hyperextension: 
   

   Nondominant arm passive ROM in abduction: 
   

   Nondominant arm passive ROM in horizontal abduction: 
   

   Explanation: