vital heat
...that Aristotle believed that a vital heat was produced in the heart, causing blood to boil and expand outward into the arteries with each pulsation?
...that <a href="./Aristotle" id="mwgQ" rel="mw:WikiLink" title="Aristotle">Aristotle</a> believed that a <b id="mwgg"><a href="./Vital_heat" id="mwgw" rel="mw:WikiLink" title="Vital heat">vital heat</a></b> was produced in the <a href="./Heart" id="mwhA" rel="mw:WikiLink" title="Heart">heart</a>, causing <a href="./Blood" id="mwhQ" rel="mw:WikiLink" title="Blood">blood</a> to boil and expand outward into the <a href="./Artery" id="mwhg" rel="mw:WikiLink" title="Artery">arteries</a> with each pulsation?