2022年2月17日 · Spinal cord. Your spinal cord is a bundle of nerve tissue that extends from the lower part of your brain to about your L1 vertebra. It carries messages between your brain and muscles. The remaining nerve roots, called the cauda equina, descend down the rest of your spinal canal. Nerves of the lumbar spine

The lumbar spine includes the terminal end of the spinal cord and the cauda equina. The spinal cord terminates in the lumbar spine. The exact point of termination varies among individuals; most commonly, it terminates at the level of the L1 or L2 vertebrae.

2023年8月14日 · The lumbar spine comprises the lower end of the spinal column between the last thoracic vertebra (T12) and the first sacral vertebra (S1). The spinal cord in this region has protection from five durable and mobile vertebrae (L1-L5) that allow for the dispersion of …

The lumbar spinal nerves that branch off from the spinal cord and cauda equina to control movements and sensation in the legs. When viewed from the side, the lumbar spine has a concave lordotic curve that helps distribute weights and reduce the concentration of stresses.

2024年10月22日 · What are the three main parts of the spinal cord? Your spinal cord has three areas that match the three sections of your spine: Cervical (your neck). Thoracic (your upper back). Lumbar (your lower back). Which nerves are in the spinal cord? There are 31 nerves connected to your spinal cord.

2024年2月12日 · To begin with, the lumbar spine helps to sustain the upper body. Because they are larger than other spinal column sections, the lumbar vertebrae (L1–L5) can absorb axial pressures from the head, neck, and trunk. The spinal cord and spinal nerves are shielded by the canal formed by the lumbar vertebrae.

2025年1月13日 · The spinal cord runs through the central canal of the vertebrae, serving as the vital link in the nervous system. Functions. Protecting the Spinal Cord: The spinal cord runs through a protective canal formed by the vertebrae, from the skull base to the first lumbar vertebra. This canal shields the spinal cord from injury.

2023年6月26日 · The spinal cord is a tubular structure composed of nervous tissue that extends from the brainstem and continues distally before tapering at the lower thoracic/upper lumbar region as the conus medullaris. The spinal cord is anchored distally by the filum terminale, a fibrous extension of the pia mater anchoring the spinal cord to the coccyx. [1] .

The lumbar spinal cord is the lower area of the back. Nerve roots coming from the spinal cord in the lumbar spine control the legs. The lumbar region is where the spinal cord ends (the spinal cord is shorter than the spine). After the lumbar spinal cord ends, it continues as a bundle of nerve roots in the lower back (the cauda equina).

2023年10月2日 · The spinal cord ends between the first and second lumbar vertebrae (L1-L2). Below this level, the remaining nerves form the cauda equina, a bundle of nerves resembling a horse’s tail.