- May 2, 2026The rib tubercle is a bony prominence on the posterior rib between the rib neck and the rib angle, projecting…
- May 2, 2026The jugular notch (suprasternal notch) is the concave superior margin of the manubrium sterni, palpable in the midline at the…
- May 2, 2026Ribs 2-12 form the lateral thoracic cage, each with a head (two articular facets for adjacent vertebral bodies), neck, tubercle…
- May 2, 2026The twelve thoracic vertebrae form the posterolateral thoracic cage, each with a heart-shaped body, bilateral facets for rib articulation (costovertebral…
- May 2, 2026The clavicle is the strut connecting the upper limb to the axial skeleton, transmitting upper limb forces to the sternum…
- May 2, 2026The sternum forms the central anterior thorax, articulating with the clavicles at the SC joints and the costal cartilages of…
- May 2, 2026The first rib is the shortest, flattest, and most curved rib, articulating only with T1 (unlike ribs 2 through 9…
- May 2, 2026The thoracic vertebral bodies increase in size from T1 to T12 as the load they bear increases progressively downward. They…
- May 2, 2026The costal cartilages connect the rib ends to the sternum (ribs 1 through 7) or to the cartilage above (ribs…
- May 2, 2026The xiphoid process is the inferior tip of the sternum, the smallest and most variable segment of the sternum. It…