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Body Atlas, Bone Reference

Bones

Full skeletal reference, surface landmarks, articulations, ossification, fracture patterns, and clinical significance.

24 bones

24 bones in Chest Clear ×

Bone Clavicle (Full) clavicula Chest The clavicle is the strut connecting the upper limb to the axial skeleton, transmitting upper limb… Bone Clavicle Middle Third corpus claviculae, pars media Chest The middle third of the clavicle is the most common fracture zone, accounting for approximately 70-80%… Bone Costal Groove sulcus costae Chest The costal groove is a groove on the inferior internal surface of each rib, running along… Bone First Rib costa prima Chest The first rib is the shortest, flattest, and most curved rib, articulating only with T1 (unlike… Bone Jugular Notch of Sternum incisura jugularis sterni Chest The jugular notch (suprasternal notch) is the concave superior margin of the manubrium sterni, palpable in… Bone Manubrium Sterni manubrium sterni Chest The manubrium is the superior and widest segment of the sternum, forming the jugular notch at… Bone Rib 1 costa prima Chest The first rib is the broadest and shortest of all ribs, with a flat superior surface… Bone Rib Angle angulus costae Chest The rib angle is the posterior curvature point of the rib where it bends abruptly forward… Bone Rib Cartilages cartilagines costales Chest The costal cartilages connect the rib ends to the sternum (ribs 1 through 7) or to… Bone Rib Head caput costae Chest The rib head is the posterior medial end of the rib that articulates with the thoracic… Bone Rib Tubercle tuberculum costae Chest The rib tubercle is a bony prominence on the posterior rib between the rib neck and… Bone Ribs 11–12 (Floating Ribs) costae fluctuantes Chest The eleventh and twelfth ribs are floating ribs with no anterior cartilaginous connection — they articulate… Bone Ribs 2–7 (True Ribs) costae verae Chest Ribs 2 through 7 are true ribs that connect to the sternum directly via their own… Bone Ribs 8–10 (False Ribs) costae spuriae Chest Ribs 8 through 10 are false ribs whose costal cartilages do not connect directly to the… Bone Second to Twelfth Ribs costae II-XII Chest Ribs 2-12 form the lateral thoracic cage, each with a head (two articular facets for adjacent… Bone Sternal Angle of Louis angulus sterni Ludovici Chest The sternal angle (angle of Louis, manubriosternal junction) is the palpable transverse ridge on the anterior… Bone Sternum sternum Chest The sternum is a flat, dagger-shaped bone forming the anterior midline of the thorax, consisting of… Bone Sternum (Full) sternum Chest The sternum forms the central anterior thorax, articulating with the clavicles at the SC joints and… Bone T1 Vertebra vertebra thoracica I Chest T1 is the first thoracic vertebra, transitional between the cervical and thoracic spine. Its body is… Bone T1-T12 Vertebrae (Thoracic) vertebrae thoracicae (T1-T12) Chest The twelve thoracic vertebrae form the posterolateral thoracic cage, each with a heart-shaped body, bilateral facets… Bone T2-T8 Vertebrae vertebrae thoracicae II-VIII Chest Vertebrae T2 through T8 are the mid-thoracic vertebrae that articulate with the corresponding ribs at their… Bone T9-T12 Vertebrae vertebrae thoracicae IX-XII Chest The lower four thoracic vertebrae transition toward the lumbar region, with T9 through T12 articulating with… Bone Thoracic Vertebral Body corpus vertebrae thoracalis Chest The thoracic vertebral bodies increase in size from T1 to T12 as the load they bear… Bone Xiphoid Process processus xiphoideus Chest The xiphoid process is the inferior tip of the sternum, the smallest and most variable segment…