Term
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Definition
| wedge shaped, comprised of 5 individual bones fused together and labeled S1-S5. |
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Term
| HOW MANY FOREARM IN THE SACRUM? |
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Definition
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Term
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Definition
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Term
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Definition
| tailbone; composed of 3-4 fused bones. |
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Term
| sacrum and coccyx are part of |
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Definition
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Term
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Definition
| junction between the sacrum and the ilium, part synovial, part fibrous (iliac side is fibrocartilage, sacral surface is hyaline) |
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Term
| ILIAC SIDE OF SACRO-ILIAC IS |
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Definition
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Term
| SACRAL SURFACE OF THE SACRO-ILIAC IS |
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Definition
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Term
| Nutation or sacral flexion occurs when |
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Definition
| the base (top) of the sacrum moves anteriorly and inferiorly. (forward and down) This causes the inferior or lower portion of the sacrum and coccyx to move posteriorly. |
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Term
| Anterior tilt of the sacrum results in |
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Definition
| the base (top) of the sacrum moving anteriorly while the apex moves posteriorly. |
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Term
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Definition
| trunk flexion or hip extension. |
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Term
| Counternutation or sacral extension occurs when |
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Definition
| the base (top) of the sacrum moves posteriorly and superiorly (back and up) causing the tip of the coccyx to move anteriorly. |
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Term
| Counternutation occurs with |
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Definition
| trunk extension or hip flexion. |
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Term
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Definition
| stretches between ischial tuberosity and edge of the sacrum. Deep to gluteus maximus. This ligament is strong and broad. |
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Term
| Posterior Sacroiliac Ligaments |
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Definition
| supports the union of the posterior sacrum and ilium. Attachments are from sacrum to area on ilium near PSIS. |
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