Anatomy and Physiology of the Human Spine
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Questions and Answers

The vertebral column has a total of 32 vertebrae and 24 intervertebral disks.

False

The cervical region of the vertebral column consists of 7 vertebrae.

True

The thoracic region of the vertebral column consists of 10 vertebrae.

False

Kyphotic curves have a posterior concavity.

<p>False</p> Signup and view all the answers

The lumbar region of the vertebral column consists of 6 vertebrae.

<p>False</p> Signup and view all the answers

The sacral nerve roots are numbered from S1 to S4.

<p>False</p> Signup and view all the answers

The main requirements for the function of the vertebral column are rigidity and elasticity.

<p>False</p> Signup and view all the answers

Rigidity in the vertebral column is maintained by ligamentous and muscular tighteners.

<p>True</p> Signup and view all the answers

The vertebral column is compared to a ship's sail in terms of structure and function.

<p>False</p> Signup and view all the answers

At shoulder level, the vertebral column supports a main-yard set vertically.

<p>False</p> Signup and view all the answers

Plasticity in the vertebral column refers to the ability of ligaments to adapt their tension.

<p>False</p> Signup and view all the answers

The shape of the vertebral column can be altered while maintaining its rigidity due to plasticity.

<p>True</p> Signup and view all the answers

The primary curves of the vertebral column in infants are kyphotic in nature.

<p>True</p> Signup and view all the answers

The cervical and lumbar curves are examples of primary curves in the vertebral column.

<p>False</p> Signup and view all the answers

The vertebral arch is divided into two main parts by the pedicle.

<p>False</p> Signup and view all the answers

The discal surfaces of the vertebral body consist of thin cortical bone.

<p>False</p> Signup and view all the answers

The labrum of the vertebral body is derived from the vertebral arch.

<p>False</p> Signup and view all the answers

The vertical trabecular systems within the spongy bone of the vertebral body help to resist shearing forces.

<p>False</p> Signup and view all the answers

Area of strengthness is evident in the anterior portion of the body.

<p>False</p> Signup and view all the answers

The entire spine is made up of two major columns, A and B, located anteriorly and posteriorly.

<p>False</p> Signup and view all the answers

The spinal curvatures reduce resistance to axial compression forces.

<p>False</p> Signup and view all the answers

The resistance R of a curved column is inversely proportional to the number N of curvatures + 1.

<p>False</p> Signup and view all the answers

The Delmas index is expressed as the ratio H/L x 100, where H is the height of the spinal column from the atlas to the coccyx, and L is its fully extended length.

<p>False</p> Signup and view all the answers

Area of weakness can lead to collapse of the vertebral bodies due to expansion fractures.

<p>False</p> Signup and view all the answers

Stability in the spine is ensured by the major column (A) made up of vertebral bodies.

<p>True</p> Signup and view all the answers

Mobility in the spine is primarily due to the two minor columns (B and C) made up of articular processes.

<p>True</p> Signup and view all the answers

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