The brachial plexus is divided into five roots three trunks six divisions three anterior and three posterior three cords and five branches. Traumatic injury this topic obstetric brachial plexus injury.

Posterior Cord Wikipedia

It is formed by the posterior divisions of the superior middle and inferior trunks of the brachial plexus.

Posterior cord of the brachial plexus. The axillary nerve derives from the posterior cord of the brachial plexus with the radial nerve and lies in close proximity to the surgical neck of the humerus. Lateral ⅔ of the dorsum of the hand. Get to know the spinal cord and peripheral nervous system and learn about the spinal nerves and the nerve plexuses that supply the extremities namely the cervical and brachial plexus.

U The axillary nerve is one of the terminal branches of the posterior cord of the brachial plexus. There are five terminal branches and numerous other pre-terminal or collateral branches such as the subscapular nerve the thoracodorsal nerve and the long thoracic nerve 1 that leave the plexus at various points along its length. In the neck region it lies in a region referred to as the posterior triangle.

Trunks are Upper Middle Lower trunk. Parts of Brachial Plexus. The injury prevents patients from straightening the affected arm forearm and hand.

Supraclavicular and infraclavicular parts. Roots are the anterior rami of C5 C6 C7 C8 T1 as mentioned above. The posterior cord gives rise to five important nerves or terminal branches of the brachial plexus.

The medial cord is formed by. The posterior division of the superior trunk. The posterior cord of the brachial plexus gives rise to the subscapular thoracodorsal and axillary nerves as well as to the radial nerve another terminal branch.

Posterior cord of brachial plexus is formed by union of posterior division of upper middle and lower trunk of brachial plexus. Superior subscapular and inferior subscapular nerve. It consists of contributions from all of the roots of the brachial plexus.

The posterior cord is a part of the brachial plexus. The radial nerve supplies the posterior compartment of the arm which contains triceps extends and adducts shoulder extends elbow. - lower subscapular nerve to subscapularis and teres major.

Anatomy of the Brachial Plexus The brachial plexus runs within the interscalene triangle bounded by the anterior scalene muscle anteriorly the middle scalene muscle posteriorly and the superior border of the first rib inferiorly65. - thoracodorsal to latissimus dorsi. It traverses the posterior triangle of the neck formed by the clavicle inferiorly the trapezius muscle.

Location of Brachial Plexus. Supraclavicular Part lies in the posterior triangle of neck. It comprises of roots and trunks of brachial plexus.

Arising from the C5-T1 ventral rami of the spinal cord the brachial plexus is divided anatomically into roots trunks divisions and cords Figure 1. The condition causes paralysis of the following muscles. The posterior cord is formed by.

Posterior cord posterior divisions of all the three trunks join to form posterior cord. The posterior cord of brachial plexus after giving upper subscapular thoracodorsal lower subscapular and axillary nerve in the axilla continues distally as the radial nerve. The posterior division of the inferior trunk.

Spinal nerves cervical plexus motor nerves of the cervical plexus brachial plexus. Brachial plexus is divided into two parts. Subscapular nerves There are usually two of these nerves.

The cords give rise to the major branches of the brachial plexus. Traumatic brachial plexus injuries BPIs can involve any degree of injury at any level of the plexus more severe injury such as rupture of plexal segments or root avulsions are associated with higher energy trauma. Posterior arm and forearm.

Posterior cord of brachial plexus was present lateral to the second part of axillary artery in 189 of upper extremities. Brachial Plexus injuries include. - three posterior divsions of brachial plexus form posterior cord.

U It turns backward and passes through the quadrangular space u Having given off a branch to the shoulder joint it divides into anterior and posterior branches. It has the root value C5-T1. C5 C6 C7 C8 T1 - upper subscapular nerve to subscapularis.

Posterior cord was formed by union of posterior division of C5 and C6 roots with posterior division of middle and lower trunk there was no upper trunk in 162 of upper extremities. The brachial plexus BP provides sensory and motor innervation to the ipsilateral shoulder chest arm and hand. Posterior cord of the brachial plexus.

- radial nerve C5 C6 C7 C8 and T1 is largest. Deltoid shoulder triceps straightens the elbow extensor carpi radialis and ulnaris straightens wrist and extensor digitorum straightens fingers. The brachial plexus arises from nerve roots that emerge from the spinal cord travel down through the neck the cervicoaxillary canal over the first rib and into the armpit.

The major branches of the axillary nerve include the lateral cutaneous nerve of the arm and motor branches to the deltoid and teres minor muscles C5C6. Proximal dorsal aspect of lateral 3½ fingers. The anterior division of the inferior trunk.

Posterior Cord of Brachial Plexus. It lies posterior to second part of axillary artery. Divisions are anterior and posterior of each trunks.

The Brachial Plexus consists of 5 Roots 3 Trunks 6 Divisions 3 Cords 5 Terminal Branches respectively. The posterior cord gives rise to the following nerves. The posterior division of the middle trunk.