Upper Limb 3 Notes PDF

[Upper limb 3:] +-----------------------------------------------------------------------+ | - *Identify the main features of the clavicle, scapula and | | humerus.* | |...

[Upper limb 3:] +-----------------------------------------------------------------------+ | - *Identify the main features of the clavicle, scapula and | | humerus.* | | | | - *Identify the major palpable features of the bones of the | | shoulder girdle and arm on yourself and on radiographic images.* | | | | - *Name, identify and give the actions of the major muscles/muscle | | groups of the posterior shoulder and superficial back and the | | nerves supplying them.* | +-----------------------------------------------------------------------+ [Joints of the shoulder:] A screenshot of a computer Description automatically generated [Sternoclavicular joint:]  [Acromioclavicular joint:] A screenshot of a computer Description automatically generated [Glenohumeral joint:]  [Superficial back and shoulder:] +-----------------------+-----------------------+-----------------------+ | **Muscle** | **Innervation** | **Action(s)** | +=======================+=======================+=======================+ | Latissimus dorsi | Thoracodorsal nerve | Adduction, medial | | | | rotation, extension | | | | of shoulder | +-----------------------+-----------------------+-----------------------+ | Trapezius | Accessory nerve | **Ascending fibres:** | | | | elevates, retracts | | | (CN XI) | and upwardly rotates | | | | the shoulder. | | | | | | | | **Transverse | | | | fibres:** retraction. | | | | | | | | **Descending | | | | fibres:** depresses, | | | | retracts and upwardly | | | | rotates the shoulder. | +-----------------------+-----------------------+-----------------------+ | Deltoid | Axillary nerve | **Anterior deltoid:** | | | | flexion and medial | | | | rotation. | | | | | | | | **Lateral deltoid:** | | | | abduction. | | | | | | | | **Posterior | | | | deltoid:** extension | | | | and lateral rotation. | +-----------------------+-----------------------+-----------------------+ | Supraspinatus | Suprascapular nerve | **Origin:** | | | | supraspinous fossa of | | | | scapula. | | | | | | | | **Insertion:** | | | | greater tubercle of | | | | humerus. | | | | | | | | Abduction. | +-----------------------+-----------------------+-----------------------+ | Infraspinatus | | **Origin:** | | | | infraspinous fossa of | | | | scapula. | | | | | | | | **Insertion:** | | | | greater tubercle of | | | | humerus. | | | | | | | | Abduction and lateral | | | | rotation. | +-----------------------+-----------------------+-----------------------+ | Teres major | Lower subscapular | **Insertion:** medial | | | nerve | lip of bicipital | | | | groove. | | | | | | | | Adduction and medial | | | | rotation. | +-----------------------+-----------------------+-----------------------+ | Teres minor | Axillary nerve | **Insertion:** | | | | greater tubercle of | | | | humerus. | | | | | | | | Abduction and lateral | | | | rotation. | +-----------------------+-----------------------+-----------------------+ | Rhomboid major | Dorsal scapular nerve | **Insertion:** medial | | | | border of scapula. | | | | | | | | Retraction and | | | | downward rotation of | | | | shoulder. | +-----------------------+-----------------------+-----------------------+ | Rhomboid minor | | | +-----------------------+-----------------------+-----------------------+ | Levator scapulae | | Elevates and | | | | downwardly rotates | | | | shoulder. | +-----------------------+-----------------------+-----------------------+ | Subscapularis | Upper and lower | **Origin:** | | | subscapular nerves | subscapular fossa of | | | | scapula. | | | | | | | | **Insertion:** lesser | | | | tubercle of humerus. | | | | | | | | Medial rotation. | +-----------------------+-----------------------+-----------------------+ The Superficial Back Muscles - Attachments - Actions - TeachMeAnatomy [Rotator cuff:]  [Suprascapular nerve and vessels:]  [Ligaments which strengthen shoulder joint:] Shoulder Ligaments: Anatomy, Function & Injuries