cervical, thoracic, lumbar, and sacral curvature.
Lumbar vertebral column
The cervical lordotic curve.
The cervical lordotic curve.
l
thoracic curvature and lumbar curvature
The S shaped curve of the structure and the intervertebral discs!
Erector spinae are the muscles that move the vertebral column.It is the largest muscle mass of the back, forming a prominent bulge on either side of the vertebral column.It is the chief extensor of the vertebral column. It is also important in controlling flexion, lateral flexion and rotation of the vertebral column and in maintaining the lumbar curve, because the main mass of the muslce is in the lumbar region.Consists of: iliocostalis, longissimus and spinalis.Erector spinae are the muscles that move the vertebral column.
Primary curvature is the concave curve of the fetal vertebral column. This is apparent in the adult thoracic and sacral regions.
There are essentially 3 curves in the human spine: 1. Cervical lordotic curve 2. Thoracic kyphotic curve 3. Lumbar lordotic curve In summary the human spine has 2 lordotic curves and 1 kyphotic curve. If you are looking at a person sideways with their face facing towards your left, the lordotic curve is concave and the kyphotic curve is convex.
Primary curvature is the concave curve of the fetal vertebral column. This is apparent in the adult thoracic and sacral regions.
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.
You have the convex anteriorly curve of cervical vertebrae. You have the concave anteriorly curve of thoracic vertebrae. Again you have the convex anteriorly curve of lumber vertebrae. The sacrum goes steep backward from the last lumber vertebra. Here no curve is described probably. So you have lardosis of cervical and lumber vertebrae. You have kyphosis of the thoracic vertebrae.