26/02/2026
Se estivermos atentos às nossas posturas diárias, contribuiremos para um melhor desempenho no nosso corpo interno.
Não se esqueça tudo se interliga. Tudo está conectado. O nosso corpo regista tudo e a longo prazo se não houver um mínimo de cuidado …. e aí vem uma dor, uma lesão…
Cuidar do corpo físico é prevenção!
🩻🧠❣️
Brachial Plexus Links — How Nerves Connect to Shoulder & Arm Muslces
The brachial plexus is not only a nerve network supplying the arm — it also forms critical neural links to the muscles that stabilize and move the shoulder girdle. Originating from spinal nerve roots C5–T1, this complex network distributes motor and sensory fibers to muscles that control scapular motion, shoulder stability, and upper-limb strength.
In the shoulder region, several important muscles receive direct branches from the plexus before the major terminal nerves even form. The long thoracic nerve (C5–C7) supplies the serratus anterior, enabling scapular protraction and upward rotation. The dorsal scapular nerve (C5) innervates the rhomboids and levator scapulae, helping retract and stabilize the scapula. Meanwhile, the suprascapular nerve (C5–C6) activates the supraspinatus and infraspinatus, essential for shoulder abduction initiation and external rotation.
The plexus also supplies large power-generating muscles. The thoracodorsal nerve innervates the latissimus dorsi, which contributes to pulling, climbing, and shoulder extension. The medial and lateral pectoral nerves activate pectoralis major and minor, supporting pushing movements and anterior shoulder stability. These neural connections coordinate pushing, pulling, lifting, and reaching tasks.
Biomechanically, these nerve-muscle links ensure proper scapulohumeral rhythm — the coordinated movement between the scapula and humerus. If nerve supply is compromised, muscles weaken, leading to altered shoulder mechanics, reduced stability, and compensatory movement patterns.
Clinically, injury or compression affecting these neural branches can result in distinctive dysfunctions. For example, long thoracic nerve impairment can cause scapular winging, while suprascapular nerve involvement may weaken overhead strength. Understanding these neural links helps clinicians trace movement dysfunction back to its neurological source.
Maintaining cervical posture, shoulder mobility, and neural tissue health supports optimal brachial plexus function — ensuring efficient movement and strength throughout the upper limb.
