cervical enlargement

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cer·vi·cal en·large·ment

a spindle-shaped swelling of the spinal cord extending from the third cervical to the second thoracic vertebra, with maximum thickness opposite the fifth or sixth cervical vertebra, consequential to the innervation of the upper limb.
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Gastric ADC is notable for diffuse cervical infiltration resulting in cervical enlargement (barrel cervix) without a distinct gross mass.
INTRODUCTION: Location of motor neuron somata supplying forelimb muscles have been studied by retrograde cell degeneration technique [5],[6],[7],[8],[9] and [10] by electrophysiological method [1] and by retrograde axonal transport of horse radish peroxidase (HRP) [11],[12],[13],[2] and [14] These studies have shown the locations of motor neuron somata of major forelimb nerves in cervical enlargement of spinal cord.
These vertebrae have a large triangular vertebral foramen which allows for the cervical enlargement of the spinal cord.