| Labeled | Label The Following |
| Infraspinatus, terese minor | Which two muscles allow you to externally(latterally) rotate your arm and hold your shoulder away from your body? |
| Subscapularis Muscle. | The ______________ is used when the arm and shoulder rotate TOWARDS the body. |
| The pectoralis minor arises by three heads from ___________ and
converges on the coracoid process of the ______________. | The ________________ arises by three heads from ribs 3 to 5 and
converges on the _____________ of the scapula. |
| - Draws Scapula Downwards, which lowers raised arm (postero-medially rotates angle of scapula)
- Assists in respiration | Actions of the Pectoralis Minor: |
| The Sternum is raised by the ___________ muslce. | The sternoceledomastoid raises the _______________. |
| The ribs are raised by the ____________ muscle. | The pectoralis major raises the _____________ |
| _______a______ is the shape of the thorax at the end of normal _____b_____ and ______a______. | Define Maximal Inspiration. |
| The muscle originates on the1st through 9th ribs and inserts on the vertabral border of the scapula. | What is the origin and insertion of the serratus anterior? |
| W hen it contracts, the scapula glides laterally and slightly forward around the ribs. | What happens when the serratus anterior contracts? |
| Wearing a heavy backpack might injur what muscle? | What is a common lesion/injury cause for the serratus anterior? |
| The loss of the serratus anterior will cause what to happen to the scapula? | The "winging" of the scapula/separation of the scapula from chest wall the is caused by the loss/injury of what muscle? |
| Without the ___________ the arm cannot be raised more than 90 degrees. | If the serratus anterior is damaged, the arm cannot do what? |
| The Trapezius, Levator Scapulae, Rhomboideus Minor, Rhomboideus Major are what group of muscles? | The posterior group of muscles on the shoulder consists of: (4) |
| Pectoralis Minor, Serratus Anterior are what group of muscles? | The anterior group of muscles on the shoulder consists of: (2) |
| It moves the scapulae (when the spinal origins are stable), It moves the spine (when the scapulae are stable). It mainly stabilizes the scapula. | Contraction of the trapezius muscle can have two effects: |
| Levator Scapulae, Rhomboid Minor, Rhomboid Major | Label the following: |
