The sciatic nerve innervates the muscles in the back of the thigh.

坐骨神支配大腿后部的肌肉。

Sometimes, there can be sciatic pain, which is a sharp pain going down the back and leg.

有时也会有坐骨神痛，是一种沿背部和腿部向下的剧烈疼痛。

These two nerves are bond together by connective tissue and make up the sciatic nerve.

这两条神由缔组织连接在一起，共同形成坐骨神。

Non-spinal causes occur outside of the spinal region and cause compression or damage to the sciatic nerve itself.

非脊柱病因发生在脊髓区域之外，对坐骨神本身造成压迫或损伤。

Sciatic pain caused by inflammation often resolves on its own over time.

由炎症引起的坐骨神痛，常在一定时间后自行减轻。

If the sciatic pain worsens when the legs are between 30 and 70 degrees, the test is positive.

如腿抬高至30-70度之间时，坐骨神痛加重，那么试即为阳。

The sciatic nerve is the longest and widest nerve in the body.

坐骨神是人体最长最宽的神。

So when they sit down, these objects put pressure on the gluteus muscles, which can compress the sciatic nerve, causing sciatica.

所以当他们坐下时，这些物体会对臀肌施加压力，这可导致坐骨神受压迫，引起坐骨神痛。

When sitting, the fetal head presses down on the sciatic nerve, on the area just before it exits the pelvis.

当孕妇坐下时，胎头正好在坐骨神离开骨盆处压迫神。

The sciatic nerve then passes beneath the piriformis muscle, and through the greater sciatic foramen, which is an opening formed by the pelvic bone, sacrospinous and sacrotuberous ligaments.

随后，坐骨神从下方过梨状肌，并穿过坐骨大孔；坐骨大孔是由骨盆、骶棘韧带和骶节韧带共同围成的通道。

Since the pain is associated with injury or compression of the sciatic nerve, and follows the path of the sciatic nerve, it makes sense to name it sciatica.

由于疼痛与坐骨神损伤或压迫有关，并沿着坐骨神的路径，所以命名为坐骨神痛。