Now, on the posterior side, you find, as well, another line, letâs say, but this time called the intertrochanteric crest that is also between the neck of the femur and the shaft and runs, as well, from the greater trochanter all the way down to the lesser trochanter.
The upper back has the most structural support, with the ribs attached firmly to each level of the thoracic spine and very limited movement. The lower back (lumbar vertebrae) allows for flexibility and movement in back bending (extension) and forward bending (flexion).
Each of the vertebrae in the spinal column has a specific shape which is designed to protect the spinal cord from injury. The T12 vertebra is located in the last position of the thoracic section of the spine, and sits just above the lumbar section.The portion of the spinal cord that the thoracic vertebrae protect is known as the thoracic cord.This part of the cord controls abdominal muscles.he T12 vertebra is located in the last position of the thoracic section of the spine, and sits just above the lumbar section. The portion of the spinal cord that the thoracic vertebrae protect is known as the thoracic cord. This part of the cord controls abdominal muscles.