
The brachial plexus is a network of nerve fibers, running from the spine, formed by the ventral rami of the lower four cervical nerves and first thoracic nerve roots (C5-C8, T1). It proceeds through the neck, the axilla (armpit region), and into the arm. It is a network of nerves passing through the cervico-axillary canal to reach axilla and inner...
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http://en.wikipedia.org/wiki/Brachial_plexus

(from the article `nervous system, human`) Cervical levels C5–C8 and thoracic level T1 contribute to the formation of the brachial plexus; small nerve bundles also arrive from C4 and T2. ...
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http://www.britannica.com/eb/a-z/b/103

A network of nerves that sends signals from the spine to the arm and hand.
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http://www.cancer.gov/dictionary?expand=B

A complex network of nerves between the neck and shoulders. These nerves control muscle function in the chest, shoulder, arms and hands, as well as sensibility (feeling) in the upper limbs
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Anterior view of right brachial plexus. Based on illustration from Gray's Anatomy A collection of large nerve trunks that pass from the lower part of the cervical spine (in the neck) and the upper part of the thorac spine (in the chest) down the arm. The nerve trunks of the brachial plexus div...
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http://www.daviddarling.info/encyclopedia/B/brachial_plexus.html

Network of nerves originating form the cervical vertebrae and running down to the shoulder, arm, hand, and fingers.
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A network of lower cervical and upper dorsal spinal nerves supplying the arm, forearm and hand. ... (27 Sep 1997) ...
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http://www.encyclo.co.uk/local/20973

a nerve plexus partly in the neck and partly in the axilla, originating from the ventral branches of the last four cervical spinal nerves and most of the ventral branch of the first thoracic spinal nerves. It has a supraclavicular part and an infraclavicular part that give off many of the principal nerves of the shoulder and up...
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Brachial plexus: A network of spinal nerves that originates in the back of the neck, extends through the axilla (armpit), and gives rise to nerves to the upper limb. The brachial plexus is formed by the union of portions of the fifth through eighth cervical nerves and the first thoracic nerve, all of which come from the spinal cord. Injuries to the...
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(bra;ke-al plek;sus) A network of nerve fibers that arise from spinal nerves C5-C8 and T1. Nerves arising from the brachial plexuses supply the upper extremities.
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The Brachial Plexus is the network of nerves which supply the arm. It is formed by the four lower cervical nerves and part of the first dorsal, and lies between the root of the neck and the axilla or armpit, where it breaks up into several branches.
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[
n] - a network of nerves formed by cervical and thoracic spinal nerves and supplying the arm and parts of the shoulder
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Plexus along the spinal cord of birds at the level of the wing; it is associated with a cervical enlargement of the spinal cord.
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https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
plexus brachialis noun a network of nerves formed by cervical and thoracic spinal nerves and supplying the arm and parts of the shoulder
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https://www.encyclo.co.uk/local/20974

a network of nerves in the armpits and neck, innervating the shoulders, arms, and hands.
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https://www.infoplease.com/dictionary/brachial-plexus

a network of nerves in the armpits, supplying nerves to the chest, shoulders, and arms.
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https://www.selfdefenseguides.info/krav-maga/glossary.html
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