Axis (C2) vs Scapula
| 特性 | Axis (C2) | Scapula |
|---|---|---|
| ラテン語名 | Axis | Os scapulae |
| 種類 | Bone | Bone |
| 器官系 | Skeletal | Skeletal |
| 身体部位 | Spine | Shoulder |
| 機能 | The second cervical vertebra that provides a pivot point for rotation of the head. The dens (odontoid process) projects superiorly and acts as the axis around which the atlas rotates. | A flat, triangular bone that forms the posterior part of the shoulder girdle. Provides attachment for numerous muscles and articulates with the clavicle and humerus. |
| 臨床的意義 | Odontoid fractures are common cervical spine injuries, especially in elderly patients. Hangman's fracture involves bilateral pars interarticularis fractures of C2. Atlantoaxial instability occurs in rheumatoid arthritis and Down syndrome. | Scapular fractures typically result from high-energy trauma and are often associated with thoracic injuries. Scapular winging occurs with long thoracic nerve palsy. The acromion process can impinge on the rotator … |
| FMA ID | 12520 | 13394 |
Full structure pages
Axis (C2)
Axis
The second cervical vertebra, the axis provides the pivot around which the head rotates. Its defining feature is the dens, or odontoid process, a tooth-like projection that extends superiorly from the body to articulate with …