Atlas (C1) vs Sternum
| Property | Atlas (C1) | Sternum |
|---|---|---|
| Latin Name | Atlas | Os sternum |
| Type | Bone | Bone |
| Body System | Skeletal | Skeletal |
| Body Region | Spine | Thorax |
| Function | The first cervical vertebra that supports the skull. Allows nodding movements (flexion and extension) of the head at the atlanto-occipital joint. | The flat bone in the center of the anterior chest wall. Protects the heart and great vessels. Provides attachment for the costal cartilages of the upper seven ribs and the … |
| Clinical Significance | Jefferson fractures (burst fractures of the atlas) result from axial loading. Atlanto-occipital dislocation is usually fatal. Congenital anomalies include atlas assimilation (occipitalization). | Sternal fractures occur from direct trauma (steering wheel injuries). Median sternotomy is the standard approach for open-heart surgery. Sternal bone marrow aspiration and biopsy are common diagnostic procedures. |
| FMA ID | 12519 | 7485 |
Full structure pages
Atlas (C1)
Atlas
Ring-shaped and unusual in lacking both a vertebral body and a spinous process, the atlas is the first cervical vertebra and supports the skull. Its structure consists of anterior and posterior arches joined by two …