Joints anatomy of shoulder girdle
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Joints anatomy of shoulder girdle - Marcador
Joints anatomy of shoulder girdle - Detalles
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| What are ligaments in sterrnoclavicular joint? | 1anterior and posterior sternoclavicular lig. 2-interclavicular lig. 3-costoclavicular lig. |
| What is the articulation of anterior and posterior sternoclavicular lig? | Articulates each clavicle with upper part of manubrium |
| What is the articulation of costoclavicular lig? | Links costal cartilage of the first rib with clavicle |
| What is the articulation of interclavicular lig? | Links two clavicles with each other by upper surface of manubrium. |
| What is the type of sternoclavicular joint? | Synovial suddle joint |
| What is the type of acromioclavicular joint? | Synovial plane joint |
| What is the portions of acromioclavicular joint? | 1-distal part of clavicle 2-acromion process of scapula |
| Is acromioclavicular joit movable as sternoclavicular one? | No, it is also weak joint |
| What helps the movement of AC joint? | Thick layer of cartilage called meniscus. |
| What are the ligaments of acromioclavicular joint? | 1-Acromioclavicular ligament 2-Coracoclavicular ligament. |
| What is the articulation of acromioclavicular ligaament? | It articulates clavicle to the acromion process of scapula |
| What is the divisions of coracoclavicular ligament? | 1-conoid ligament 2-trapezoid ligament |
| What is the articulation of coracoclavicular ligament? | It articulates clavicle with the coracoid process of scapula |
| What articulates the upper limb with the pectoral girdle? | The glenhumoural joint. |
| What is the articulation of glenohumeral joint(shoulder joint)? | It articulates head of humerus and glenoid cavity of scapula. |
| What is the type of shoulder joint? | Synovial ball and socket joint |
| What is the action of shoulder joint? | The most movable joint ,it acts as multi axial(adduction,abduction,external and internal rotation,circumduction) |
| What is the movement that scapula done by shoulder joint? | Protraction, retraction, elevation, and depression |
| Why glenohumeral joint is unstable joint? | Because the of huemerus is larger than glenoid cavity |
| What makes the stability of shoulder joint? | Rotator cuff muscles, tendons, ligaments, and the Glenoid labrum. |
| What are the ligaments of glenohumeral joint? | 1-glenohumeral ligament(superior, middle inferior) 2-coracohumeral ligament 3-transverse hemeral ligament |
| What is the articulation of glenohumeral ligament? | Articulates glenoid cavity with the head of humeras |
| What is the function of transvers ligament? | Strengthens the capsule and bridges the gap between the two tuberosities in hemerus. |
| What is the function of coracohumeral joint and from where it extends? | Strengthens the capsule above and stretches from the root of the coracoid process to the greater tuberosity of the humerus. |
| What is the glenoid labrum? | Is a fibrocartilaginous rim attached around the margin of the glenoid cavity in the scapula. |
| What is the function of glenoid labrum? | It deepens the articular cavity and protects the edges of the bone. |
| What is the capsule that covers shoulder joint? | Is a thin and lax structure surrounds the joint. |
| What is the articulation of capsule? | Medially to the margin of the glenoid cavity outside the labrum, laterally it is attached to the anatomic neck of the humerus |
| What is the function of capsule? | Allowing a wide range of movement for joint. |
| What strengths capsule? | Fibrous slips from the tendons of the rotator cuff muscles. |
| What is the function of synovial membrane? | Lines the capsule, attached to the margins of the cartilage covering the articular surfaces and it forms a tubular sheath around the tendon of the long head of the biceps brachii. |
| What is the extension of synovial membrane? | It extends through the anterior wall of the capsule to form the subscapularis bursa beneath the subscapularis muscle. |