An Anterior View Of The Body Of The Sternum

Description

Centered in the anterior thorax, the sternal body (gladiolus) appears as a long, flattened midline bone segment between the superior manubrium and inferior xiphoid process, meeting them at the sternal angle and xiphisternal joint. Along its right and left lateral borders, the costal notches come into view in sequence for articulation with the costal cartilages of ribs II through VII, with paired facets aligned in a superior-to-inferior progression. The animation maintains an anterior perspective while subtly advancing along the vertical axis to clarify how each notch relates to the adjacent intercostal space and to the body’s midline. Surface anatomy of the sternal body matters because it is a primary landmark for cardiothoracic examination and access. The sternal angle (Angle of Louis), at the manubriosternal junction just superior to the gladiolus, marks the transverse thoracic plane and helps clinicians identify the second costal cartilage, a starting point for rib counting, auscultation, and chest tube level orientation. Motion adds clarity here: stepping through the lateral notches makes it easier to internalize why rib II anchors at the junction while the lower ribs articulate directly with the sternal body, a detail that often gets lost in static diagrams. Use this animation in thoracic wall anatomy teaching, osteology labs, and clinical skills modules that cover rib counting, sternal landmarks, and safe anterior chest procedures such as median sternotomy planning or sternal marrow access discussions. It also fits well in textbook sidebars on the breastbone and costosternal joints, or as a short visual in patient education for sternal fracture localization after blunt trauma. Anatomical accuracy verified by SciePro's Medical Advisory Board.