Snow: January: 25Â° 41Â°-22Â° (1994) 77Â° (1950) 3.28 5.1 February: 29Â° 47Â°-19Â° (1951) 78Â° (1932) 3.25 4.5 March: 37Â° 57Â°-1Â° (1960) 88Â° (1929) 4.41 2.1 April: 46Â° 67Â° 21Â° (1875) 91Â° (1960) 3.91 0.2 May: 56Â° 75Â° 31Â° (1966) 98Â° (1911) 4.88 0 June: 65Â° 83Â° 42Â° (1966) 102Â° (1952) 3.76 0 July: 70Â° 87Â° 49Â° (1947) 107Â° (1936) 4.3 0 August: 68Â° 86Â° 45Â° (1946) 105Â° (2007)
Basic clinical descriptions of common patterns of spinal cord involvement are related to essential aspects of spinal cord anatomy. The spinal cord is located inside the vertebral canal, which is formed by the foramina of 7 cervical, 12 thoracic, 5 lumbar, and 5 sacral vertebrae, which together form the spine.
The cell bodies of the sensory neurons leading to the spinal cord are located in clusters, the dorsal root ganglia (DRG), next to the spinal cord. Their axon extends in both directions: a peripheral axon to receptors at the periphery and a central axon passing into the spinal cord.