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The cauda equina (from Latin tail of horse) is a bundle of spinal nerves and spinal nerve rootlets, consisting of the second through fifth lumbar nerve pairs, the first through fifth sacral nerve pairs, and the coccygeal nerve, all of which arise from the lumbar enlargement and the conus medullaris of the spinal cord.
cauda equina syndrome Saddle anesthesia is a loss of sensation ( anesthesia ) restricted to the area of the buttocks , perineum and inner surfaces of the thighs . Asymmetric saddle anesthesia is frequently associated with the spine-related injury cauda equina syndrome . [ 1 ]
Cauda equina syndrome (CES) is a condition that occurs when the bundle of nerves below the end of the spinal cord known as the cauda equina is damaged. [2] Signs and symptoms include low back pain, pain that radiates down the leg, numbness around the anus, and loss of bowel or bladder control. [1] Onset may be rapid or gradual. [1]
The cauda equina ("horse's tail") is a collection of nerves inferior to the conus medullaris that continue to travel through the vertebral column to the coccyx. The cauda equina forms because the spinal cord stops growing in length at about age four, even though the vertebral column continues to lengthen until adulthood.
Severe back pain extending to the hips and feet, loss of bladder or bowel control, or muscle weakness may result from spinal tumors or cauda equina syndrome. [15] Trauma to the spine, such as from a car accident or hard fall onto the heel or buttocks, may also lead to sciatica. [15]
Descending nerve roots continue as the cauda equina [35] at levels L2–S5 below the conus medullaris before exiting through intervertebral foraminae. [39] Thus it is not a true spinal cord syndrome since it is nerve roots that are damaged and not the cord itself; however, it is common for several of these nerves to be damaged at the same time ...
Rock and dust samples retrieved by NASA from the asteroid Bennu exhibit some of the chemical building blocks of life, according to research that provides some of the best evidence to date that ...
The pathway crosses over at the level of the spinal cord, rather than in the brainstem like the dorsal column-medial lemniscus pathway and lateral corticospinal tract. It is one of the three tracts which make up the anterolateral system: anterior and lateral spinothalamic tract, spinotectal tract, spinoreticular tract.