Embryogenesis Quotes

The entrée wasn't tender enough to be a paving stone and the gravy couldn't have been primordial soup because morphogenesis was already taking place.

As with most animal eggs, the early events of amphibian development are largely independent of the environment, and the processes leading to cell differentiation must involve a redistribution and interaction of constituents already present in the fertilized egg.

Man comes not from an egg but from an animalcule that is found in male sperm.

Ontogeny re-capitulates phylogeny.

Empedolces claims that in utero, our backbone is one long solid; and that through the constriction of the womb and the punishments of birth it must be snapped again and again to form our vertebrae; that for the child to have a spine, his back must first be broken

When sperm and egg unite, something goes from inanimate to animate. It is life.

Upon the union of the male germ cell with the female egg cell, a new cell is created which almost immediately splits into two parts. One of these grows rapidly, creating the human body of the individual with all its organs, and dies only with the individual.

We all come into existence as a single cell, smaller than a speck of dust. Much smaller. Divide. Multiply. Add and subtract. Matter changes hands, atoms flow in and out, molecules pivot, proteins stitch together, mitochondria send out their oxidative dictates; we begin as a microscopic electrical swarm. The lungs the brain the heart. Forty weeks later, six trillion cells get crushed in the vise of our mother’s birth canal and we howl. Then the world starts in on us.