Term
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Definition
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Term
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Definition
| Joint motion occurs at STERNOCLAVICULAR join & to a lesser amount at the ACROMIOCLAVICULAR joint |
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Term
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Definition
Ligamentous support
Anteriorly by the anterior SC ligament
Posteriorly by the posterior SC ligament |
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Term
| Castoclavicular & Interclavicular |
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Definition
| Ligaments provide suability against superior displacement |
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Term
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Definition
Supported by:
Covacoclavicular ligaments
Superior acromioclavicular ligament
Inferior acromioclavicular ligament
*Often injured |
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Term
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Definition
| Classified as synovial joint, although not a true synovial joint |
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Term
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Definition
Movement depends on SC & AC which allows the scapula to move
Supported dynamically by its muscles
- No ligamentous support |
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Term
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Definition
| Scapula moves laterally away from spinal column |
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Term
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Definition
| Scapula moves medially toward spinal column |
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Term
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Definition
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Term
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Definition
| Turning glenoid fossa upward and moving inferior angle superolaterally away from spinal column |
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Term
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Definition
| Returning inferior angle inferomedially toward spinal column and glenoid fossa to normal position |
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Term
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Definition
| Upward or superior movement, as in shrugging shoulders |
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Term
| Upward & Downward Rotation |
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Definition
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Term
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Definition
| Downward or inferior movement, as in returning to normal position |
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Term
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Definition
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Term
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Definition
Stabilize scapula
Contract to maintain scapula in a relatively static position
Contract to move shoulder girdle and to enhance movement of upper extremity |
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Term
| Shoulder Girdle and Joint |
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Definition
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Term
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Definition
| _______________ Contract to move shoulder girdle so the glenoid fossa will be in a position from which the humerus can move |
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Term
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Definition
| How many muscles primarily involved in shoulder girdle movement??? |
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Term
| 5 Primary Muscles Involved in Shoulder Movement |
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Definition
All originate on axial skeleton
All insert on SCAPULA and or CALVICLE
Do not attach to humerus and do not cause shoulder joint actions
Provide dynamic stability of the scapula so it can serve as a base of support for shoulder joint activities |
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Term
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Definition
Trapezius - upper, middle, lower
Rhomboid - Deep
Levator Scapula
Serratus Anterior
Pectoralis Minor - Deep |
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Term
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Definition
| Origin: Base of Skull, vertebrae (7-T12) |
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Term
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Definition
| Insertion: Clavicle, acromium process, scapular spine |
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Term
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Definition
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Term
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Definition
| Insertion: Superior, medial border of the scapula |
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Term
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Definition
| Action: Scapular elevation & downward rotation |
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Term
| Rhomboid Muscles - Major & Minor |
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Definition
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Term
| Rhomboid Muscles - Major & Minor |
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Definition
| Insertion: Medial Scapula |
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Term
| Rhomboid Muscles - Major & Minor |
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Definition
| Action: Scapular retraction, downward rotation |
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Term
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Definition
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Term
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Definition
| Insertion: Coracoid process |
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Term
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Definition
| Action: Scapular protraction, upward rotation |
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Term
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Definition
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Term
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Definition
| Insertion: Coracoid process |
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Term
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Definition
| Action: Scapular protraction, depression |
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Term
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Definition
| Action: scapular depression |
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Term
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Definition
Agonists:
Pectoralis Minor
Serratus Anterior |
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Term
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Definition
Agonists:
Middle Trapezius
Rhomboid |
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Term
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Definition
Agonists:
Middle Trapezius
Lower Trapezius
Serratus Anterior |
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Term
| Scapula Downward Rotation |
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Definition
Agonists:
Pectoralis Mahor
Rhomboid |
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Term
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Definition
Agonists:
Levator Scapula
Upper Trapezius
Rhomboid |
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Term
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Definition
Agonists:
Lower Trapezius
Pectoralis Minor |
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Term
| Trapezius & Levator Scapula |
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Definition
NERVES*
Branches of C3 & C4 |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Long thoracic nerve originating from C5,C6 & C7 |
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Term
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Definition
| Medial pectroal nerve originating from C8 - R1 |
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