👉 Aptilosia is a term used in biology referring to the development or growth of muscles, particularly in skeletal muscles that are not normally involved with movement. It involves the formation and maturation of muscle fibers, which can be either primary or secondary, depending on the type of muscle being developed. This process occurs during embryonic development, typically between 20-30 days after fertilization, as it is a crucial step in the initiation of muscle growth and function.
