In the fetal and neonatal spine, the vertebral column curves of the cervical, thoracic, lumbar, and sacral all oriented as anterior concave curves. and are designated primary curves.
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Humans have two vertebral curves, the primary curve and the secondary curve. The function of vertebral curves is to allow the body to cope with an even amount of weight to be distributed.
Accommodation curves
The lordotic curve, which includes the cervical and lumbar curves, is considered superior in the vertebral column. These curves help to maintain balance and absorb shock during movement.
In general, the human vertebral column has a soft S shape. The cat's vertebral column, on the other hand, is a soft C shape. That is to say, a cat's vertebral column curves once whereas the human's curves twice, in opposite directions.
THORACIC MUSCLESFUNCTIONNERVELongissimus ThoracisExtension, lateral flexion of vertebral column, rib rotationDorsal primary divisions of spinal nervesIliocostalis ThoracisExtension, lateral flexion of vertebral column, rib rotationDorsal primary divisions of spinal nervesSpinalis ThoracisExtends vertebral columnDorsal primary divisions of spinal nervesSemispinalis ThoracisExtends & rotates vertebral columnDorsal primary divisions of spinal nervesRotatores ThoracisExtends & rotates vertebral columnDorsal primary divisions of spina
The primary purpose of a vertebral column is to protect the group of nerves thus enclosed. Consider the fish, or most animals which have a horizontal column. This column also acts as an anchorage for muscles and tendons, thus facilitating movement of the organism. Only in a few animals, is the vertebral column approximately vertical, and in this attitude, it enhances the apparent height of the animal, thus offering the animal a superior height for vision.
The vertebral column is inferior to the skull.
the sternum is anterior to the vertebral column
the sternum is anterior to the vertebral column
The thoracic and sacral regions of the vertebral column typically retain a posteriorly convex curvature in the adult. The thoracic region curves outward due to the shape of the ribs attaching to the spine, while the sacral region naturally curves to accommodate the weight of the upper body.
The spinal column features primary and secondary curves that each serve distinct functions. Primary curves, which include the thoracic and sacral curves, are present at birth and accommodate the shape of the fetal spine, providing space for internal organs. In contrast, secondary curves, such as the cervical and lumbar curves, develop later in life as a result of weight-bearing activities and upright posture, enhancing balance and support. Together, these curves contribute to the overall stability and flexibility of the spine.
the vertebral column is located below your skull on your back.