Spinal Cord L1. The spinal cord is a part of the central nervous system. The spinal cord ends around the l1 or l2 vertebrae in adults forming the conus medullaris. Spinal cord injury videos spinal cord injury details understanding brain injury. Well for the lumbar spinal column there are five sections.
Spinal cord contained in epidural space network of sensory and motor nerves firm cord like structure extends from foramen magnum to l1 terminates at the conus medularis the cauda equina begins below l1 filum terminale extends from conus medularis to the coccyx. The spinal cord ends at the level of vertebrae l1 l2 while the subarachnoid space the compartment that contains cerebrospinal fluid extends down to the lower border of s2. Vertebrae are grouped into sections. The rest of the spine merely contains spinal nerves rather than the spinal cord proper. Chronic lower back pain is one of the most prevalent medical complaints in modern society today. Below l2 there is only spinal roots called the cauda equina.
However t3 through t12 cord segments are situated between t3 to t8.
The lumbar cord segments are situated at the t9 through t11 levels while the sacral segments are situated from t12 to l1. The lumbar region of the spine is located immediately below the thoracic vertebrae and is a common area for injuries. Lumbar spinal cord injury levels l1 l5 anatomy of the human spine. A spinal needle is inserted between two vertebrae at level l3 l4 or l4 l5 where there is no risk of accidental injury to the spinal cord which ends at l1 to l2. The tip of the spinal cord or conus is situated at l2 vertebral level. The higher the injury on the spinal cord the more dysfunction can occur.