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The suprascapular nerve is a mixed (sensory and motor) nerve that branches from the upper trunk of the brachial plexus. It is derived from the ventral rami of cervical nerves C5-C6. It provides motor innervation to the supraspinatus muscle , and the infraspinatus muscle .
The suprascapular nerve which innervates the supraspinatus can be damaged along its course in fractures of the overlying clavicle, which can reduce the person's ability to initiate the abduction. [ citation needed ]
subclavian nerve (C5-C6) suprascapular nerve (C5-C6) anterior division of upper trunk (C5-C6, forms part of lateral cord) posterior division of upper trunk (C5-C6, forms part of posterior cord) The axillary, radial, musculocutaneous and median nerves all contain axons derived from the upper trunk.
Innervation Supraspinatus muscle: supraspinous fossa: superior [2] facet of the greater tubercle: abducts the humerus: Suprascapular nerve Infraspinatus muscle: infraspinous fossa: middle facet of the greater tubercle: externally rotates the humerus: Suprascapular nerve (C5–C6) Teres minor muscle: middle half of lateral border: inferior facet ...
The dorsal scapular nerve is a branch of the brachial plexus, usually derived from the ventral ramus of cervical nerve C5. It provides motor innervation to the rhomboid major muscle, rhomboid minor muscle, and levator scapulae muscle. Dorsal scapular nerve syndrome can cause a winged scapula, with pain and limited motion.
Suprascapular nerve; Supratrochlear nerve; Sural nerve; Sympathetic trunk; Temporal branches of the facial nerve; Third occipital nerve; Thoracic aortic plexus;
The suprascapular artery and suprascapular nerve pass around the great scapular notch anteroposteriorly. Supraspinatus and infraspinatus are both supplied by the suprascapular nerve , which originates from the superior trunk of the brachial plexus (roots C5-C6).
These nerves are part of a group of nerves that innervate the muscles that move the scapula. The upper subscapular nerve innervates the upper portion of the subscapularis muscle. The middle subscapular nerve, known as the thoracodorsal nerve, innervates the latissimus dorsi muscle. [1] The lower subscapular nerve contains two branches.