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Created by Marissa Alvarez
over 7 years ago
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Question | Answer |
What joint is shown below? What type of joint is it and how many planes of movement does it allow? | Sternoclavicular joint: a saddle joint allows moderate freedom of movement in two planes. Feel your clavicle move as you shrug your shoulders. Notice how little the sternal end moves. |
What joint is shown below? What type of joint is it and how many planes of movement does it allow? | Glenohumeral joint: a ball and socket joint like this allows ample freedom of movement (in 3 planes). The socket here (glenoid) is rather shallow but is reinforced by a lip of cartilage and several ligaments. Despite these reinforcements, it is prone to dislocation. |
What are the 4 movements of the scapula? | Protraction: The scapula is pulled laterally, as when extending the arm for something out of reach. Retraction: The scapula is pulled medially, as when pulling your shoulders back. Elevation: The scapula is moved superiorly, as when shrugging the shoulders. Depression: The scapula is moved inferiorly, as when carrying a heavy suitcase. |
What joint is shown? What type of joint is it and how many planes of movement does it allow? | Glenohumeral joint: a ball and socket joint like this allows ample freedom of movement (3 planes of movement). Movements of the Humerus The humerus articulates with the glenoid via a ball and socket joint. This type of joint allows the most freedom of movement of any joint. |
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