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OPP I_1-2
Vertebral Biomechanics
Question | Answer |
---|---|
Vertebral unit | Two adjacent vertebrae with their associated intervertebral disk, arthorodial, ligamentous, muscular, vascular, lymphatic and neural elements. |
Rule of three’s | T1-3: TP directly lateral to SP. T4-6: TP halfway between SP and that of segment above. T6-9: TP directly lateral to spinous process of segment above. T10-12: TP return directly to lateral spinous process. |
Coronal plane | bisects through the ears; wearing a headband |
Sagittal plane | bisects through the eyes; parts your hair |
Transverse plane | cuts you in half at the waste; like wearing a belt |
Type I spinal mechanics | When the thoracic and lumbar spine are in a neutral (easy normal) position, the coupled motions of side-bending and rotation for a group of vertebrae occur in opposite directions (with rotation occurring toward the convexity. |