The Spinal Cord - The Spinal Cord...

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The Spinal Cord The spinal cord has two functions: class="bullet"> •    Transmission of nerve  impulses.  Neurons in the white matter  of the spinal cord transmit sensory  signals from peripheral regions to the  brain and transmit motor signals from  the brain to peripheral regions. •    Spinal reflexes.  Neurons in the gray  matter of the spinal cord integrate  incoming sensory information and  respond with motor impulses that  control muscles (skeletal, smooth, or  cardiac) or glands.
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The spinal cord is an extension of the brainstem that begins at the foramen magnum and continues down through the vertebral canal to the first lumbar vertebra (L 1 ). Here, the spinal cord comes to a tapering point, the conus medullaris. The spinal cord is held in position at its inferior end by the filum terminale, an extension of the pia mater that attaches to the coccyx. Along its length, the spinal cord is held within the vertebral canal by denticulate ligaments, lateral extensions of the pia mater that attach to the dural sheath. The following are external features of the
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The Spinal Cord - The Spinal Cord...

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