What is a "L1 L2 L3 L4 L5"? The Most Authoritative Explanation.
What is L2 L3 and L4?
L2 is the lowest vertebral segment that contains spinal cord tissue. After that point, nerve roots exit each of the remaining lumbar levels beyond the spinal cord. Injuries below this level (at the L3, L4, and L5 vertebrae) affect the hips and legs and may cause numbness extending to the feet (sciatica).What is the function of the L2 L3 and L5 spinal nerves?
L2, L3, and L4 spinal nerves provide sensation to the front part of the thigh and inner side of the lower leg. These nerves also control movements of the hip and knee muscles. L5 spinal nerve provides sensation to the outer side of the lower leg, the upper part of the foot, and the web-space between the first and second toe.What are L3 L4 and L5 vertebrae injuries?
Injuries below this level (at the L3, L4, and L5 vertebrae) affect the hips and legs and may cause numbness extending to the feet ( sciatica ). It may also harm the tip of the spinal cord known as the caudal equina, which is a bundle of spinal nerves and nerve roots that innervate the lower lumbar spine to the sacrum.What is the difference between Lagrange 1 L2 and L3?
Lagrange 1 (L1), Lagrange 2 (L2) and Lagrange 3 (L3) are along a line contacting the two large masses: the Earth and the Sun. These three points are unstable versus the stable Lagrange 4 (L4) and Lagrange 5 (L5) points, which are the apexes of two equilateral triangles.
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