What is the corresponding anatomical landmark for T3?

The anatomical landmark corresponding to T3 is indeed the spine of the scapula. The thoracic vertebrae are categorized with their spinous processes palpable on the skin surface. T3’s spinous process aligns with the medial border of the spine of the scapula, which is a prominent bony ridge on the posterior aspect of the scapula.

This alignment is clinically significant, as it helps healthcare professionals identify the correct vertebral level when assessing spinal injuries or planning surgical interventions. Understanding the relationship between spinal levels and surface landmarks is essential in orthotics, as it aids in the proper fitting and alignment of spinal braces and other orthopedic devices.