These form the coccyx, more commonly referred to as the tailbone.Īt the end of the spinal cord, there is a collection of nerve roots known as the cauda equina, or horse’s tail. Just below the sacrum are 3-5 coccygeal vertebrae, which are also fused together. The last lumbar vertebra (L5) articulates (moves) with the sacrum. The lumbar spine has more range of motion than the thoracic spine, but less than the cervical.įive vertebrae fused together in the lower spine form the sacrum, abbreviated S1 through S5.The sacrum is a triangular-shaped structure that lies between the “wings” of the pelvis and is held together by the sacroiliac joints. The lower back is particularly vulnerable to injury because it bears the stress of virtually all motion, i.e., sitting/standing, pushing/pulling, lifting. The lumbar vertebrae are the largest in the spine and bear most of the body’s weight. The lower backconsists of 5 vertebrae, abbreviated L1 through L5. Additionally, thoracic vertebrae do not rotate as much as vertebrae in the neck or lower back, The thoracic spine is often less prone to injury because it is braced by the rib cage. Rib attachments add to the strength and stability of the thoracic spine. The chest area contains the 12 thoracic vertebrae, abbreviated T1 through T12. These vertebrae protect the brain stem and the spinal cord, support the skull, and allow for a wide range of head movement. The neck consists of seven vertebrae, abbreviated C1 through C7. Provides structural support and balance to maintain an upright posture. ![]() ![]() Protects the spinal cord and nerve roots.The curves are necessary for shock absorption and normal healthy movement. When viewed from the front, the spine appears straight and rigid however, when viewed from the side, a healthy spine is slightly S-shaped, with distinct curves.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |