| CMUA | continuous motor unit activity |
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| CMV | continuous mandatory ventilation; controlled mechanical ventilation; conventional mechanical ventila... |
| CNP | community nurse practitioner; continuous negative pressure; cranial nerve palsy; 2',3'-cyclic nucleo... |
| CNPV | continuous negative pressure ventilation |
| CPAP | continuous positive airway pressure |
| lumbar part of spinal cord | Portion of spinal cord which consists of the five lumbar segments (L1-L5) and from which five pairs of lumbar spinal nerves originate; in the adult it is located in the T10-L1 portion of the vertebral canal, and is enlarged relative to other parts of the cord due to its involvement in innervation of the lower limb. (05 Mar 2000) |
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| lumbar segments of spinal cord | The five lumbar segments of the spinal cord which give rise to the five pairs of lumbar spinal nerves and constitute the lumbar part of the spinal cord. Synonym: segmenta medullae spinalis lumbaria. (05 Mar 2000) |