Sternocostal Joints
Description
Name
- Sternocostal Joints
- Sternochondral joints
- Costosternal articulations
General
- Synovial plane articulation between the ribs 2-7 and the sternum
- Exception: first rib has a synchondrosis joint since the cartilage directly united with the sternum
Joint Type
- Sternochondral joint 1: Primary cartilaginous joint (synchondrosis)
- Sternochondral joints 2-7: Synovial planar joints, nonaxial, uniplanar
Articular Surfaces
- Sternal ends of costal cartilages of the true ribs
- Costal notches on sternum
Ligaments
- Intraarticular Sternocostal Ligaments
- Radiate Sternocostal Ligaments
- Costoxiphoid Ligaments
Innervation
Vascular Supply
- Internal thoracic artery
Actions/ Movements
- Sternochondral joint 1: almost no movement
- Sternochondral joints 2-7: translation, mainly superinferiorly
- Facilitates thoracic motion duration respiration
Clinical Significance
- Needs to be updated
See Also
References
- ↑ Ahmed, Hesham H., et al. "Early and midterm outcomes of left anterior descending coronary artery reconstruction in extensive coronary artery atherosclerosis." Menoufia Medical Journal 36.2 (2023): 22.