Q. How is food converted into blood?
A. After it is swallowed, it is dissolved in the stomach into a grey pulp; it then passes into the intestines, and is converted by the “bile” into a milky substance (called chyle).
Q. What becomes of the milky substance, called chyle?
A. It is absorbed by the vessels called “lacteals,” and poured into the veins on the left side of the neck.
Q. What becomes of the chyle after it is poured into the veins?
A. It then mingles with the blood, and is itself converted into blood.
Q. How does the oxygen we inhale mingle with the blood?
A. The oxygen of the air mingles with the blood in the lungs, and converts it into a bright red colour.
Q. What colour is the blood before it is oxydized in the lungs?
A. A dark purple. The oxygen turns it to a bright red.