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root


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n.1. (in neurology) a bundle of nerve fibres at its emergence from the spinal cord. The 31 pairs of spinal nerves have two roots on each side, an anterior root containing motor nerve fibres and a posterior root containing sensory fibres. The roots merge outside the cord to form mixed nerves. 2. (in dentistry) the part of a tooth that is not covered by enamel and is normally attached to the alveolar bone by periodontal fibres. 3. the origin of any structure, i.e. the point at which it diverges from another structure. Anatomical name: radix.

1. (in neurology) a bundle of nerve fibres at its emergence from the spinal cord. The 31 pairs of spinal nerves have two roots on each side, an anterior root containing motor nerve fibres and a posterior root containing sensory fibres. The roots merge outside the cord to form mixed nerves. 2. (in dentistry) the part of a tooth that is not covered by enamel and is normally attached to the alveolar bone by periodontal fibres. 3. the origin of any structure, i.e. the point at which it diverges from another structure. Anatomical name: radix.

Subjects: Medicine and Health.


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