Below you can find the The heart has 4 of these to regulate the flow of blood including the mitral Jeopardy Words Answer. The answer to The heart has 4 of these to regulate the flow of blood including the mitral has 6 letters. This clue belongs to the The tell-tale heart category and is part of Jeopardy Word Level 321. If you scroll near the bottom you will find other clues and answers part of level 321