The depth is important in terms of supporting not only the lower extremities, but also the spine.

深度很重要，因为它不仅支撑着下肢，也支撑着脊柱。

In skeletal muscles, this can cause weakness and flaccid paralysis, that starts in the lower extremities and ascends upward.

在骨骼肌细胞中，它可以导致驰缓性麻痹，从下肢开始，然后向上抬升。

The fat that tends to accumulate in the lower extremities, for example, the legs, the buttocks, much less metabolically active.

下肢堆积的脂肪，例如腿、臀部，代谢活性低得多。

Diminished skeletal muscle contractions can lead to muscle weakness, cramps, and flaccid paralysis, which tends to begins in the lower extremities and ascends upward.

减弱的骨骼肌收缩会导致肌肉虚弱、痉挛、软瘫，从下肢开始，然后向上抬升。

The lower extremity of each of the seven spots was pierced with a small round hole.

七个斑点的下肢分别被刺穿了一个小圆孔。

This results in cyanosis in the lower extremities, a blue or purple discoloration of the skin; that's the result of deoxygenated blood mixing with oxygenated blood.

这会导致下肢的发绀，即皮肤变蓝或青紫，是由缺氧血和氧合血混合造成的。

Now, you've got deoxygenated blood flowing into the aorta and generally heading to the lower extremities since the upper extremities and head typically have arterial branches upstream from the PDA.

这部分未经过氧合的血进入了主动脉后，通常流入了下肢，这是由于供应上肢和头部的血管来自主动脉上位于动脉导管上游的分支。

In that case, you get a buildup of fluid around the lungs, in the lower extremities, and you need to take medications that will help you get rid of that excess fluid.

在这种情况下， 您会在肺部和下肢周围积聚液体，您需要服用药物来帮助您排出多余的液体。