Extension in the thoracic spine is limited by which structure?

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Multiple Choice

Extension in the thoracic spine is limited by which structure?

The main constraint for extending the thoracic spine is the contact between the spinous processes. In the thoracic region, these processes are long and overlap with the one below. When you try to extend, they physically bump into each other, creating a bony block that limits further motion. This overlapping arrangement makes extension relatively limited in the thoracic area. While ligaments like the anterior longitudinal ligament do resist hyperextension and facet joints contribute to overall restriction, the direct impingement of the spinous processes is the primary limiting factor described here.

The main constraint for extending the thoracic spine is the contact between the spinous processes. In the thoracic region, these processes are long and overlap with the one below. When you try to extend, they physically bump into each other, creating a bony block that limits further motion. This overlapping arrangement makes extension relatively limited in the thoracic area. While ligaments like the anterior longitudinal ligament do resist hyperextension and facet joints contribute to overall restriction, the direct impingement of the spinous processes is the primary limiting factor described here.

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