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A growth curve is a chart model showing the growth and evolution of an entity over time. A population growth curve charts the growth of a population over a certain amount of time.
Type II
To measure immigration patterns, or to see how much a city is growing.
a graph showing the process of animals or humans or plants and their growth rate over time.
directional selection
thoracic curvature and lumbar curvature
cervical, thoracic, lumbar, and sacral curvature.
Primary curvature is the concave curve of the fetal vertebral column. This is apparent in the adult thoracic and sacral regions.
Primary curvature is the concave curve of the fetal vertebral column. This is apparent in the adult thoracic and sacral regions.
Lumbar vertebral column
The cervical lordotic curve.
The cervical lordotic curve.
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.
The S shaped curve of the structure and the intervertebral discs!
Cervical curveAtlasAxisC3 to C7Thoracic curveT1 to T12Lumbar curveL1 to L5Saccrum curveS1 to S5Coccyx curve
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.
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.