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Wednesday, May 11, 2011

The weight of the upper limb is transmitted to the axial skeleton by- Medical MCQ

Original article : "The weight of the upper limb is transmitted to the axial skeleton by:

A. Coracoclavicular ligament
B. Coracoacromial ligament
C. Costoclavicular ligament
D. Coracohumeral ligament

Answer is A. Coracoclavicular ligament





Functions of the different ligaments at the shoulder joint are as follows:

Coracoclavicular ligament: Extends from coracoid process to the under-surface of the clavicle Action: Responsible for suspending the weight of the scapula and upper limb from the clavicle.

Coracoacromial ligament: Extends between coracoid process and acromion. Action: Protects superior aspect of the joint

Coracohumeral ligament: Extends from root of the coracoid process to greater tuberosity of humerus. Action: Strengthens the capsule above.

Costoclavicular ligament: Extends from junction of first rib with first costal cartilage to inferior surface of sternal end of clavicle.

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