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Sacram and Coccyx
| Question | Answer |
|---|---|
| What are the large bumbs at the top of the sacram and their purpose? | Superior articular factes, articulate with L5 |
| What is the hole down the center of the sacram called? | Sacral canal |
| What are the 2 large bilateral masses that resemble wings called on the sacram? And what is their purpose? | Ala, have articular surfaces on their lateral sides which make the sacroilliac joint |
| The sacram doesnt have spinous processes, but instead has? | Spinous tubricles |
| What is the sacral promontory? | On the anterior side of the sacram, superior margin of S1 |
| What is the Sacram's equivalent to an articular process? | Intermediate crest, bilateral to the median crest |
| What is the median crest of the sacram? | Runs down the middle of the sacram, over the spinous tubricles |
| What is the lateral crest of the sacram? | The most lateral crest on the sacram equivalent to a transverse process |
| What are the 4 bilateral holes called on the sacram | Sacral foramina |
| What is the sacral hiatus? | on the dorsal side of S5, inferior opening of the sacral canal, naturally occurring spina bifida |
| What is sacral cornua? | Formed by inferior tubricles of the sacral crest |
| What are the 2 horns coming off the top of the Coccyx? | coccygeal cornua, project superiorly from the 1st coccyx vertibrae |
| What projects laterally from the first coccygeal vertibrae? | Transverse processes. |
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