<span>Three months after fertilization and development of a placenta around the developing fetus, the corpus luteum regresses and forms the corpus albicans.</span> Formed placenta takes over progesterone production (which was the role of corpus luteum) and the corpus luteum degrades into a corpus albicans. The corpus luteum is being broken down by macrophages, in a process called luteolysis. The remains of the corpus albicans may persist as a scar on the ovary.
A magnifying glass (called a hand lens in laboratory contexts) is a convex lens thatis bigto produce a magnified image of an object. The lens is usually mounted in a frame with a handle
