Question on: JAMB Biology - 2001

The image shows a vertebra with features characteristic of a thoracic vertebra. Here's why: * **Thoracic vertebrae** are located in the chest region and articulate with the ribs. Key features include: * Presence of facets or demifacets for articulation with the ribs. * A heart-shaped vertebral body. * A long, downward-sloping spinous process. Let's look at the incorrect options: * **A. Caudal vertebra:** These are tail vertebrae, not found in the image. * **B. Lumbar vertebra:** Lumbar vertebrae are in the lower back and have large, kidney-shaped bodies and a short, blunt spinous process. * **D. Cervical vertebra:** Cervical vertebrae are