Voorbeelden van infraspinatus

• The suprascapular nerve contributes sensory fibres to the shoulder joint and provides motor innervation to the supraspinatus and infraspinatus muscles.

• First to identify via ultrasonography is the characteristic shape of the infraspinatus muscle tendon unit.

• The intrinsic muscles of the scapula include the muscles of the rotator cuff- the subscapularis, teres minor, supraspinatus, and infraspinatus.

• In addition, a moderately strong association between the area of the full-thickness tear and the resulting increase in pennation angle of the infraspinatus was visible.

• The flat iron steak lies above it, and is distinct from this steak, as it is formed from different muscles: teres minor and infraspinatus.

• Other muscles that aid the posterior deltoid include the two lateral rotators of the rotor cuff: the infraspinatus and teres minor.

• This may cause paralysis of both supraspinatus and infraspinatus muscles.

• However, a correlation between full-thickness rotator cuff tear size and the pennation angle of the supraspnatus and infraspinatus muscles was evident.

• The four muscles of supraspinatus, infraspinatus, teres minor and subscapularis form a musculo-ligamentous girdle called the rotator cuff.

• The infraspinatus and teres minor insert on the greater tubercle, and work to laterally, or externally, rotate the humerus.

• If the lifter does not lock the elbow, the lateral rotators (posterior deltoid, infraspinatus, teres minor) are also involved in preventing internal (medial) rotation.

• It unveils clearly the whole area from the subedge of the subscapularis tendon until the intersection between infraspinatus tendon and musculus teres minor.

• Other transverse extensors, the infraspinatus and teres minor, also work in tandem with the posterior deltoid as external (lateral) rotators, antagonists to strong internal rotators like the pecs and lats.

• It innervates the supraspinatus and infraspinatus muscles.

• The infraspinatus and 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).