What is the corresponding landmark for the L2 vertebra?

The landmark corresponding to the L2 vertebra is indeed the lower costal margin. This is significant in clinical practice as it serves as a useful reference point for locating the lumbar spine's anatomical landmarks. The lower costal margin is typically formed by the inferior border of the ribs, which aligns with the L2 and L3 vertebrae when considering standard anatomical relations.

Understanding this relationship is critical in various fields, such as physical therapy, orthopedics, and surgery, as it aids in identifying spinal and muscular structures for interventions or diagnostics. In examination and assessment settings, recognizing these anatomical landmarks can enhance precision in applying treatments or conducting assessments.

The other landmarks, although relevant in their own contexts, do not correspond to the L2 vertebra. For instance, the xiphoid process is associated with T10, the sternal angle relates to the T4-T5 junction, and the inferior angle of the scapula is generally found around T7 to T9. Each of these landmarks is situated at different points along the vertebral column, emphasizing the distinct anatomical significance of the lower costal margin in relation to L2.