Jehovah created the woman Eve by using one of the 12 pairs of ribs, or one of Adam’s 24 as a base with which to build Adam’s wife. Here God performed what may be called the first operation of painless surgery. He put Adam into a deep sleep, and while he was sleeping, he took one of his ribs and then closed up the flesh over its place. (Gen. 2:21-23)
Did you notice he closed up the incision before he did the building of Eve? Adam is still asleep, because that’s where his brain is—in his head! He’s resting while his brain controls sleep while God is building the rib into a woman before he brought her to the man. A rib was used; part of the first human so this divided the feminine characteristics from Adam and put them in his woman or Ishshah, and this produced the human sexes.
Ribs are easy to repair, whereas brain surgery is delicate, besides where would God naturally look, at the head? That’s inane reasoning, because are there bones available like one of 24 ribs to choose from?
Not because it would be easier, but because ribs ensconce vital organs. The heart, lungs, kidneys, It would be incredible to remove Adam’s head, or even part of it while Adam is asleep—close up the flesh over its place to build that into what emerged, and what Adam was overjoyed to receive and accept:
“This is at last bone of my bones and flesh of my flesh. This one will be called Woman, because from man this one was taken.” (Genesis 2:23)