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The following 24 pages use this file: Anterior corticospinal tract; Cancer pain; Dorsal column–medial lemniscus pathway; Extrapyramidal system; Interventional pain management; Lateral corticospinal tract; Motor neuron; Pyramidal tracts; Reticular formation; Romberg's test; Rubrospinal tract; Spinal cord; Spino-olivary tract; Spinocerebellar ...
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It is the space within the thecal sac which extends from below the end of the spinal cord (the conus medularis), typically at the level of the first to second lumbar vertebrae down to tapering of the dura at the level of the second sacral vertebra. The dura is pierced with a needle during a lumbar puncture (spinal tap).
A cross section or cross-section, in geology, is a diagram representing the geologic features intersecting a vertical plane, and is used to illustrate an area's structure and stratigraphy that would otherwise be hidden underground. The features described in a cross section can include rock units, faults, topography, and more.
Within these compartments, the neck houses the cervical vertebrae, the cervical portion of the spinal cord, upper parts of the respiratory and digestive tracts, endocrine glands, nerves, arteries and veins. The muscles of the neck, which are separate from the compartments, form the boundaries of the neck triangles. [2]
Simplified cross-section through the Kīlauea (gray) and Mauna Loa volcanoes (and edge of Mauna Kea), showing 1) how each volcano lies on the flank of the older volcanoes, and 2) the low-angle slopes typical of shield volcanoes. Elevation in kilometers, with no vertical exaggeration. [8]
The spinal nerves arise from the spinal column. The top section of the spine is the cervical section, which contains nerves that innervate muscles of the head, neck and thoracic cavity, as well as transmit sensory information to the CNS. The cervical spine section contains seven vertebrae, C-1 through C-7, and eight nerve pairs, C-1 through C-8.