Quran 86:5-8 – Ribs And Backbone
If I got you right then probably these are the verses you’re talking about. فَلْيَنْظُرِ الْإِنْسَانُ مِمَّا خُلِقَ خُلِقَ مِنْ مَّآءٍ دَافِقٍ يَّخْرُجُ مِنْ م بَيْنِ الصُّلْبِ وِالتَّرَائِبِ إِنَّهُ عَلَى رَجْعِهِ لَقَادِرٌ (٥-٨) [If even this is not sufficient evidence,] then let man see from what he has been created. From a spurting fluid that comes out from between the bones of the back and the chest. [If His Lord can create him in such a manner, then] surely, He can create him again. (86:5-8)