CHAPTER III. When Does Human Life Begin?

WHEN DOES HUMAN LIFE BEGIN?

Ancient and modern opinions. The fetus is animated at the moment of conception. The single cell as the primal life-organ. Cell growth and division. Germ cells. The development of the embryo. Fetal viability. Theories of development. The Aristotelian and Thomistic opinions. The formal principle. A soul exists. The primordial cell is a sufficient organ for the soul. Metabolism in the cell. Cell motion. Animal heat and energy. Life in separated tissues. The soul in monsters 33-82