4 ms·
From the paper I was thinking of(link added to parent comment): "the velocity of the blood in the embryonic heart lumen exceeds the speed of the peristaltic wa
by 01100011 7y ago
From the paper I was thinking of(link added to parent comment):
"the velocity of the blood in the embryonic heart lumen exceeds the speed of the peristaltic wave moving through the lumen"
which is interesting if you think of the heart as a peristaltic pump.