El nervio dorsal de la escápula es un nervio motor de la región escapular. Proporciona inervación motora a los músculos romboide mayor, romboide menor y elevador de la escápula. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Trayecto El nervio escapular dorsal se origina en el plexo braquial, normalmente como un ramo directo de la raíz raquídea C5. Desde su origen, discurre inferiormente y atraviesa el músculo escaleno medio. A continuación, el nervio dorsal de la escápula desciende entre la superficie profunda del músculo elevador de la escápula (al que proporciona inervación motora) y las superficies superficiales del músculo serrato posterior y del escaleno posterior. A continuación, pasa por debajo de la superficie profunda de los músculos romboides y se ramifica en numerosas ramas motoras. Adobe Stock, Licensed to TeachMeSeries Ltd Fig. 1: Trayecto del nervio dorsal de la escápula. Funciones motoras El nervio escapular dorsal proporciona inervación motora a los músculos romboide mayor, romboide menor y elevador de la escápula. By TeachMeSeries Ltd (2026) Fig. 2: Los músculos superficiales de la espalda. Frequent questions What is the dorsal scapular nerve? The dorsal scapular nerve is a motor nerve located in the scapular region that innervates the rhomboid major, rhomboid minor, and levator scapulae muscles. It plays a crucial role in the movement and stability of the scapula. What muscles are innervated by the dorsal scapular nerve? The dorsal scapular nerve provides motor innervation to the rhomboid major, rhomboid minor, and levator scapulae muscles. These muscles are essential for the retraction and elevation of the scapula. Where does the dorsal scapular nerve originate? The dorsal scapular nerve typically originates from the brachial plexus as a direct branch of the C5 spinal root. Its pathway begins at the neck and descends towards the scapula. What is the path of the dorsal scapular nerve? After originating from the C5 root, the dorsal scapular nerve travels inferiorly, passing through the middle scalene muscle before descending between the levator scapulae and serratus posterior muscles. It then runs beneath the rhomboid muscles, where it branches into motor innervations. What is the clinical significance of the dorsal scapular nerve? Injury to the dorsal scapular nerve can lead to weakness in the muscles it innervates, resulting in impaired scapular movement and stability. This may affect shoulder function and overall upper limb mobility. Rate This Article