Verse 7

अल्पाल्पाष्ठीवदाकारा भुजाक्रूरास्थिशङ्कवः ।महाबाहुलताशब्दैर्वर्ण्यन्ते कविभिः शुभैः

In plain words

The arms -- harsh stakes of bone, shaped like very small knee-joints -- are described by fine poets in words like 'great creeper-arms'.