Apoptosis programmed cell death that is carried out in multicellular organism. Apoptosis leads to production of cell fragments called apoptotic bodies that phagocytic cells engulf and quickly remove.
Apoptosis is designed to carry out functions of the body development.For example, the differentiation of fingers and toes in a developing human embryo occurs because cells between the fingers apoptose, separating the digits.
Between 50 and 70 billion cells die each day due to apoptosis in the average human adult.
A defective apoptotic processes have been implicated in an extensive variety of diseases which iclude atrophies in case of increased apoptosis and cancer when apoptosis is insufficient.