Understanding of the verse

As Salamuwalikum rahmatullahi barakatuh. I have question regarding Quran 886:5-7. I have seen many argument for and against this verse. Here is couple explanation 1: semen is produced in seminal vesical and prostate gland. Both of which are in between backbone and ribs. (Between backbone and ribs is thoracic region (i.e heart, lungs etc.) how is this between backbones and ribs. 2. It's referring to human not fluid as ibn atiyyah and Iman qurtubi mentions in their tafsir. But again the question is; baby is located in abdominal region not backbone and ribs (thoracic region). What am I missing here? Please someone help me. Jazakallah Khair