The suprascapular nerve contributes sensory fibres to the shoulder joint and provides motor innervation to the supraspinatus andinfraspinatusmuscles.
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First to identify via ultrasonography is the characteristic shape of theinfraspinatusmuscle tendon unit.
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The intrinsic muscles of the scapula include the muscles of the rotator cuff- the subscapularis, teres minor, supraspinatus, andinfraspinatus.
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In addition, a moderately strong association between the area of the full-thickness tear and the resulting increase in pennation angle of theinfraspinatuswas visible.
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The flat iron steak lies above it, and is distinct from this steak, as it is formed from different muscles: teres minor andinfraspinatus.
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Other muscles that aid the posterior deltoid include the two lateral rotators of the rotor cuff: theinfraspinatusand teres minor.
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This may cause paralysis of both supraspinatus andinfraspinatusmuscles.
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However, a correlation between full-thickness rotator cuff tear size and the pennation angle of the supraspnatus andinfraspinatusmuscles was evident.
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The four muscles of supraspinatus,infraspinatus, teres minor and subscapularis form a musculo-ligamentous girdle called the rotator cuff.
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Theinfraspinatusand teres minor insert on the greater tubercle, and work to laterally, or externally, rotate the humerus.
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If the lifter does not lock the elbow, the lateral rotators (posterior deltoid,infraspinatus, teres minor) are also involved in preventing internal (medial) rotation.
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It unveils clearly the whole area from the subedge of the subscapularis tendon until the intersection betweeninfraspinatustendon and musculus teres minor.
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Other transverse extensors, theinfraspinatusand teres minor, also work in tandem with the posterior deltoid as external (lateral) rotators, antagonists to strong internal rotators like the pecs and lats.
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It innervates the supraspinatus andinfraspinatusmuscles.
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Theinfraspinatusand teres minor rotate the head of the humerus outward (external, or lateral, rotation); they also assist in carrying the arm backward (extension of the glenohumeral joint).
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