Kidney Stones, also known as renal calculi, are hard masses that separate urine from the urinary tract. These stones can occur anywhere in the urinary tract, including the kidneys, bladder, ureters and urethra.
This fluid is called the cerebrospinal fluid (CSF). When it leaks out, the pressure around the brain and spinal cord drops. Causes of leakage through the dura include: 1  Certain head, brain, or spinal surgeries.  Head injury.
The slipped disc (C) is pressing directly on a nerve root and this can cause pain, pins and needles and ultimately weakness in the arm. The intervertebral disc (D) acts as a shock absorber between the vertebrae. Compression of the spinal cord is very dangerous and can lead to paralysis.One of the earliest signs of impending paralysis is very brisk reflexes when the specialist taps your knee or elbow.Compression of a nerve root may lead to pins and needles, pain and weakness of that part of the arm and hand which is supplied by that specific nerve.he slipped disc (C) is pressing directly on a nerve root and this can cause pain, pins and needles and ultimately weakness in the arm. The intervertebral disc (D) acts as a shock absorber between the vertebrae. Compression of the spinal cord is very dangerous and can lead to paralysis.