Erosion is the movement of the broken pieces away from the site of weathering. Basalt columns. For example, a basalt cliff may be weathered by freeze-thaw, a type of physical weathering.This means that pieces of the cliff may break away. Erosion happens when these pieces of rock fall away down the cliff. In the photograph you can see a basalt cliff.rosion is the movement of the broken pieces away from the site of weathering. Basalt columns. For example, a basalt cliff may be weathered by freeze-thaw, a type of physical weathering.
Animals that have a spine are called vertebrates, and animals that don't have one are called invertebrates. Humans have a spine, so we are vertebrates. Many vertebrates, including mammals, have intervertebral discs separating the vertebrae. Regions. The vertebral column is divided by doctors into 5 sections called regions. These 5 regions from top to bottom are: Cervical - Shown in red, this region supports the head. It is made up of 7 vertebrae. The first two, called the atlas and axis, connect the spine to the skull. Thoracic - Shown in blue, this region supports the ribs.
The cervical spine has seven vertebral bodies (segments). The top two segments are unique: 1  The first cervical segment (called the atlas) is a ring that does not have a vertebral body. 2  It is attached to the second vertebral body (the axis), which acts as a post that the first vertebral ring rotates around.3  Most of the rotation in the neck is located in these top two segments.ll of the vertebral bodies act as a support column to hold up the spine. This column supports about half of the weight of the body, with the other half supported by the muscles. Each area of the spine has some differences in the form and function of vertebral bodies and how they are attached to adjacent structures.