Anatomy of the Atlas Bone

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Questions and Answers

Which of the following structures is removed during a laminectomy?

  • Lamina (correct)
  • Transverse process
  • Vertebral body
  • Spinous process

Which vertebra is characterized by the presence of a foramen transversarium?

  • Sacrum vertebra
  • Lumbar vertebra
  • Cervical vertebra (correct)
  • Thoracic vertebra

What is the primary function of the foramen transversarium?

  • To reduce the weight of the vertebral column
  • To provide attachment for muscles
  • To facilitate the passage of the vertebral artery and associated veins (correct)
  • To increase the stability of the cervical spine

Which of the following vertebrae is NOT a typical vertebra?

<p>Atlas (D)</p> Signup and view all the answers

What is the region of the vertebral column from which the vertebra with the foramen transversarium originates?

<p>Cervical region (C)</p> Signup and view all the answers

What is the function of the articular facet for dens in the atlas?

<p>To articulate with the dens of the axis (A)</p> Signup and view all the answers

What is the function of the transverse process in a vertebra?

<p>To provide attachment site for muscles and ligaments (B)</p> Signup and view all the answers

Which of the following structures is NOT a component of the intervertebral joint?

<p>Ligamentum flavum (B)</p> Signup and view all the answers

What is the main function of the anterior sacral foramina?

<p>To allow for the passage of spinal nerves (D)</p> Signup and view all the answers

From which region of the vertebral column is the vertebra shown in Figure 2?

<p>Thoracic region (C)</p> Signup and view all the answers

Which of the following regions of the vertebral column is characterized by the presence of a sacrum?

<p>Pelvic region (B)</p> Signup and view all the answers

What is the function of the superior articular facet on a vertebra?

<p>To articulate with the vertebral body above (A)</p> Signup and view all the answers

What is the primary function of the zygapophysial joint?

<p>To provide stability to the vertebral column (A)</p> Signup and view all the answers

What ligament connects the dens of the axis to the anterior arch of the atlas?

<p>Apical ligament of the dens (B)</p> Signup and view all the answers

What is the clinical significance of the intervertebral foramen?

<p>It provides a pathway for spinal nerves and vessels (D)</p> Signup and view all the answers

What is the name of the bony projection on the axis that forms a pivot joint with the anterior arch of the atlas?

<p>Dens (B)</p> Signup and view all the answers

Which of the following is NOT a ligament that connects the atlas to the axis?

<p>Inferior longitudinal band of the cruciform ligament (B)</p> Signup and view all the answers

What is the clinical significance of osteoporosis in relation to the vertebral column?

<p>It can result in collapse of the vertebral body (A)</p> Signup and view all the answers

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