Magnetic Resonance Imaging (MRI) Practice Test

What characteristic does the ligamentum flavum have in the vertebral column?

1. It supports the spinal cord

2. It is made of cartilage

3. It provides flexibility to the spine

4. It is a vascular structure

The correct answer is: It supports the spinal cord

The ligamentum flavum is a key structure in the vertebral column that primarily supports the spinal cord, which is crucial for protection and stability within the spine. This ligament runs between each pair of adjacent vertebrae, contributing to the overall integrity of the spinal column. It is composed predominantly of elastic tissue, allowing it to stretch and return to its original shape, which helps to maintain tension on the spinal canal during movement. This elasticity is important as it aids in providing support and preventing injury to the spinal cord during dynamic activities. In contrast to the incorrect options, the ligamentum flavum is not made of cartilage, as it is distinctly an elastic structure. While it does provide some degree of flexibility, its primary function is not to enable flexibility in the same manner as other spinal ligaments that are more focused on motion. Lastly, it is not classified as a vascular structure, as it does not play a role in blood circulation or contain blood vessels. Therefore, the correct response emphasizes its role in supporting the spinal cord specifically.