Re: Doesn't look like undigested food to me..
The arterial blood is created as air is turned into a liquid, this liquid then must be turned back into a gas to pass the gap and enter the veinous veins. This gap is so small the best microscopes can not see it.
You have over 20,000 miles of tubing this blood travels in a few minutes riding on a frictionless highway with trillions of passengers!!!!!!!!!! The tricky MD probably has zero idea how your blood travels, because they are taught the heart does it. The heart is a mixing chamber non like a directional valve system. It is a regulator and regulators do not pump.
Our biggest pump is our lungs, it takes oxygen from our dirty air and filters it through a membrane as thin as a soap bubble at amaxing SPEED, yet, our lungs can not pump blood thousands of miles.
I would like to see how many knows the answer or others guesses for now! This is one of the secrets that the medical teachers do not want us common people to understand. It is as though they teach opposite of the truth whe it comes to the human body, I am not sure if it is on purpose or if they are groping in the dark as Dr. Alex Carrol, MD wrote.
Blessings,
MH