Coracoacromial arch consists of
Acromion process
Coracoid process
Coracoacromial ligament
Head of the humerus
Spine of scapula
Blood supply to the supraspinatus is the artery
Proximal attachment: Infraspinous fossa of scapula Distal attachment:Middle facet of greater tubercle of humerus is the muscle
A is two parallel forces, equal in magnitude but opposite in direction, acting on different points of the body a distance apart from each other
Which ligament consists of two attachments?
Coracoclavicular
Coracoacromial
Glenohumoral
Which ligaments are weak but reinforce the joint capsule?
Acromioclavicular ligaments
coracoclavicular ligaments
coracoacromial ligaments
uninterrupted movement of upper extremity from dependent position to full abduction.
Full range of motion is 180 degrees rotation around the joint. How much is contributed by the glenohumoral joint and the scapulothoracic movement of sternoclavicular joint and acromioclavicular joint?
80 degrees glenohumoral 120 degrees scapulothoracic 20 degrees sternoclavicular 40 acromioclavicular
50 degrees glenohumoral 60 degrees scapulothoracic 30 degrees sternoclavicular 30 degrees acromioclavicular
120 degrees glenohumoral 80 degrees scapulothoracic 40 degrees sternoclavicular 20 degrees acromioclavicular
60 degrees glenohumoral 50 degrees sapulothoracic 20 degrees sternoclavicular 30 acromioclavicular
depression of the scapula is accomplished by the
Paralysis of the axillary nerve paralyses the muscle
