Question

This is a right posterior oblique film. The patient's body is rotated 45 degrees to the left, from the lateral view, so that we can visualize the left intervertebral foramina. What are the structures, marked A-D, in the image?

Answer 1

Structures A-D in the image are likely to represent the left transverse process (A), the left pedicle (B), the left lamina (C), and the left spinous process (D) of the vertebra under consideration.

Step-by-step explanation:

In this right posterior oblique film with a 45-degree left rotation of the patient's body, the goal is to visualize the left intervertebral foramina. The structures labeled A-D correspond to key anatomical features of the vertebra. The left transverse process (A) extends laterally from the vertebra, providing attachment points for muscles and ligaments.

The left pedicle (B) is a bony bridge connecting the transverse process to the vertebral body, contributing to the structural integrity of the spine. The left lamina (C) forms the posterior portion of the vertebral arch, while the left spinous process (D) projects posteriorly and serves as a point of muscle attachment.

The 45-degree rotation to the left enhances the visualization of these structures, allowing for a more comprehensive assessment of the left intervertebral foramina. The transverse process (A), pedicle (B), lamina (C), and spinous process (D) collectively contribute to the overall architecture of the vertebra.

Proper identification of these structures is crucial in radiology for diagnosing conditions such as spinal fractures, degenerative changes, or pathologies affecting the vertebral column. This oblique view optimizes the assessment of the left side, aiding in a thorough evaluation of the vertebral anatomy and any potential abnormalities present in the left intervertebral foramina.

Answer 2

The structures, marked A-D, in the image is:

A: Spinous process of vertebra

B: Vertebral body

C: Pedicle

D: Lamina

Step-by-step explanation:

A: Spinous process of vertebra - This is the bony projection posteriorly extending from the vertebral arch, serving as an attachment point for muscles and ligaments.

B: Vertebral body - The main, weight-bearing portion of the vertebra.

C: Pedicle - A part of the vertebral arch that connects the lamina to the vertebral body.

D: Lamina - The flat plates of bone extending from the pedicles that form the posterior portion of the vertebral arch.