Nerve Plexus - Brachial Plexus

Brachial Plexus

The Brachial plexus (plexus brachialis) is formed by the ventral rami of C5-C8-T1 spinal nerves, and lower and upper halves of C4 and T2 spinal nerves. The plexus extends toward the armpit (axilla). The roots of C5 and C6 form upper trunk (truncus superior), the ramus C7 forms the middle trunk (truncus medius), and the rami C8 and T1 join to form the lower trunk (truncus inferior) of the brachial plexus. Under the clavicle, the trunks (trunci) reorganize to form cords (fasciculi) around the axillary artery (arteria axillaris). The lateral cord (fasciculus lateralis) is formed by the upper and middle trunk, all three trunks join to form the posterior cord (fasciculus posterior), the lower trunk continues to the medial trunk (fasciculus medialis). The nerves (containing motor and sensory fibers) to the shoulder and to the upper limb emerge from the brachial plexus.

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Other articles related to "brachial plexus, plexus":

Anesthesia Of The Brachial Plexus
... Brachial plexus blocks are regional anesthesia techniques that are sometimes employed as an alternative to general anesthesia for surgery of the shoulder, arm, forearm, wrist and hand ... agents in close proximity to the brachial plexus, temporarily blocking the sensation and ability to move the upper extremity ... There are several techniques for blocking the nerves of the brachial plexus ...
Anesthesia Of The Brachial Plexus - History
... William Halsted (1852–1922) performed the first brachial plexus block ... Using a surgical approach in the neck, Halsted applied cocaine to the brachial plexus ... surgical residents — applied cocaine to the brachial plexus prior to dividing it, during a forequarter amputation for sarcoma ...
Upper Limb - Human Anatomy - Neurovascular System - Innervation
... help is available The motor and sensory supply of the upper limb is provided by the brachial plexus which is formed by the ventral rami of spinal nerves C5-T1 ... upper limb by the five terminal nerves of the brachial plexus The musculocutaneous nerve innervates all the muscles of the anterior compartment of the arm ... the arm and forearm Collateral branches of the brachial plexus The dorsal scapular nerve innervates rhomboid major and minor ...
Magnetic Resonance Neurography - Clinical Uses
... neurography is on the evaluation of the large proximal nerve elements such as the brachial plexus (the nerves between the cervical spine and the underarm ... in nerves, carpal tunnel syndrome, and obstetrical brachial plexus palsy ... increasingly to evaluate the distal nerve roots, lumbo-sacral plexus and proximal sciatic nerve in the pelvis and thigh to find other causes of sciatica ...
Brachial Plexus - Additional Images
... abdominal, and pelvic plexuses Side of neck, showing chief surface markings Brachial plexus with areas of roots, trunks, divisions and cords marked Color-coded diagram of brachial plexus ...