The erythrocytes proceed through the circulatory system, carrying the oxygen in loose combination with "hemoglobin" HEMOGLOBIN and giving it up to the body cells that need it.
(The erythrocytes; proceed; ) (The erythrocytes; carrying; the oxygen) (The erythrocytes; giving up; to the body cells) (the body cells; need; it)
The erythrocytes The erythrocytes The erythrocytes the body cells
proceed carrying giving up need
the oxygen
to the body cells
it