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16 lis 2023 · The lumbar vertebrae are five in number and desginated as vertebrae L1-L5. They are primarily responsible for bearing the weight of the upper body (and permitting movement) and consequently represent the largest individual segments of the vertebral column.
The lumbar spinal nerves control movements of the hip and knee muscles. The 5 pairs of lumbar spinal nerves innervate the lower limbs. While innervation can vary among individuals, some common patterns include 2 Dulebohn SC, Ngnitewe Massa R, Mesfin FB.
24 sty 2018 · Lumbar vertebrae: Numbered L1 through L5, these odd-shaped vertebrae signal the end of the typical bones of the spinal column. Sacrum : This triangle-shaped bone is made up of five fused...
Lumbar: The 5 vertebrae in the lower back form the lumbar region of the spine. Lumbar vertebrae are even larger and stronger than thoracic vertebrae, but are more flexible due to the lack of ribs in the lumbar region.
23 wrz 2023 · The spinal nerve is a mixed nerve, containing both sensory and motor fibers. Dorsal Ramus: Supplies the muscles and skin of the back. Ventral Ramus: Forms the major nerves of the limbs and front of the body, and contributes to nerve plexuses like the brachial, lumbar, and sacral plexuses.
2 paź 2024 · This human anatomy module is composed of diagrams, illustrations and 3D views of the back, cervical, thoracic and lumbar spinal areas as well as the various vertebrae. It contains the osteology, arthrology and myology of the spine and back.
Adults typically have 33 bones called vertebrae, that interlock with each other to form the spinal column. The vertebrae are divided into five regions or sections: Cervical; Thoracic; Lumbar; Sacrum; Coccyx; Each section has a different number of vertebrae and supports different parts of your body.
