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sternum
sternum comp
| Question | Answer |
|---|---|
| What kind of bone is the sternum? | flat bone |
| How long is the sternum? | 6” |
| What is the purpose of the sternum? | to support the clavicles and provide for rib attachment |
| Name the 3 parts of the sternum | manubrium, body and Xiphoid process |
| Alternate names for the body | corpus or gladiolus |
| At what level does the sternal angle lie? | T4-T5 |
| The Xiphoid process lies at what vertebral level? | T10 |
| The sternoclavicular joints are formed by: | sternal extremity of clavicle and clavicular notch of manubrium |
| Sternoclavicular joint type | double gliding |
| Costochondral joint type | cartilaginous synchondrosis |
| Sternocostal joint type for the first pair of ribs | cartilaginous synchondrosis |
| Sternocostal joint type for rib pairs 2-7 | synovial gliding |
| Manubriosternal joint type | cartilaginous synchondrosis |
| Xiphisternal joint type | cartilaginous synchondrosis |
| Sternum positioning variations for chest depth | deep chests require less angulation |
| Patient position for oblique sternum | RAO |
| Respiration for RAO sternum | shallow breathing |
| Rotation and CR entry for RAO sternum | 15-20 degrees, CR entering T7 1” medial to MSP on elevated side. TOF 1 ½” above jugular notch |
| SID lateral sternum | 72” |