Below you can find the The adult human brain is made up of more than 10 billion of these nerve cells Jeopardy Words Answer. The answer to The adult human brain is made up of more than 10 billion of these nerve cells has 7 letters. This clue belongs to the Science & nature category and is part of Jeopardy Word Level 472. If you scroll near the bottom you will find other clues and answers part of level 472