click below
click below
Normal Size Small Size show me how
kenis_exam2
Rutgers NeuroKenis Exam 2
Question | Answer |
---|---|
Prof. | Chris D'Andrea |
Joints of the Shoulder Girdle | Sternoclavicular, Acromioclavicular, Scapulothoracic, Glenohumeral |
Bones of the Should Girdle | Clavicle, Scapula |
Sternoclavicular Joint | Large end of the Clavicle articulating with the small surface on the sternum |
Clavicle Functions | (1)muscular attachment (2)barrier to protect understructures (3)strut to stabilize shoulder (4)prevents medial displacement (5)prevents inferior migration of shoulder girdle |
The only point of skeletal attachment of the upper extremity to the trunk | Sternoclavicular Joint |
3 ligaments that reinforce the Sternoclavicular joint | (1) Interclavicular (2)Costoclavicular (3) Sternoclavicular |
Factors that Reinforce Sternoclavicular Joint | Reinforced by strong subclavius, joint capsule |
Purpose of Sternoclavicular Joint Capsule | helps to stop dislocation and disruption |
Degrees of Freedom of Sternoclavicular Joint | 3 degrees, (1) Superior/Inferior (2)Anterior/Posterior (3)Rotation |
Motion that Superior/Inferior Freedom allows | Elevation and Depresstion, 30-40 degrees ROM |
Motion that Anterior/Posterior Freedom allows | Protraction and Retraction, 40-50 degrees ROM |
Motion that Rotation Freedom allows | Posterior and Anterior Rotation, 40-50 degrees ROM |
Acromioclavicular Joint | A small gliding synovial Joint at a size of 9-19 mm in mots adults, where most of the scapula/clavicle movements occur |
Where the clavicle is connected to the scapula at its distal end | Acromioclavicular Joint |
Ligaments of the Acromioclavicular Joint | Acromioclavicular Ligament, Coracoacromial Ligament, Coracoclavicular Ligament (Trapezoid/conoid) |
Coracoclavicular Lig. | Assists with Scapular movements by serving as an axis of rotation and providing substantial support in movements that require large ROM, protects underlying structures, limits excessive movement of humeral head |
Scapulothoracic Joint | no bone to bone connection, physiological joint. 2 muscles (serratus ant. and Subscapularis) |
How many muscles attach to or originate on the scapula? | 17 muscles |
Scapula | large flat triangle bone composed of 5 thick ridges |
Scapulothoracic Joint | no bone to bone connection, physiological joint. 2 muscles (serratus ant. and Subscapularis) |
How many muscles attach to or originate on the scapula? | 17 muscles |
Surfaces of Scapula | Infraspinous fossa, Supraspinous fossa |
Scapula | large flat triangle bone composed of 5 thick ridges |
What Motion does the scapula assist with? | Increases the ROM of the shoulder past the 120 degrees that you get solely from the Glenohumeral joint |
5 ridges on scapula | glenoid, spine, medial border, lateral border, coracoid process |
Key Bony landmarks of the Scapula | Manubrium, clavicle, coracoid process, acromion process,Glenoid Fossa, lateral border, inferior border, medial border |
Surfaces of Scapula | Infraspinous fossa, Supraspinous fossa |
Scapular Movements | Abduction, Adduction, Elevation, depression, Upward and Downward Rotation |
What Motion does the scapula assist with? | Increases the ROM of the shoulder past the 120 degrees that you get solely from the Glenohumeral joint |
What is scapular movement dependent on | dependent on the movement and position of the clavicle |
Key Bony landmarks of the Scapula | Manubrium, clavicle, coracoid process, acromion process,Glenoid Fossa, lateral border, inferior border, medial border |
Scapular Movements | Abduction, Adduction, Elevation, depression, Upward and Downward Rotation |
What is scapular movement dependent on | dependent on the movement and position of the clavicle |