What is apoptosis,cerebral hamarage and aquaporins?

Apoptosis is a process of programmed cell death that occurs in multicellular organisms. Biochemical events lead to characteristic cell changes (morphology) and death. These changes include blebbing, cell shrinkage, nuclear fragmentation, chromatin condensation, chromosomal DNA fragmentation, and global mRNA decay. Between 50 and 70 billion cells die each day due to apoptosis in the average human adult.^[a] For an average child between the ages of 8 and 14, approximately 20 to 30 billion cells die a day.

Bleeding around or within the brain itself is known as a cerebral hemorrhage (or intracerebral hemorrhage).


Aquaporins, also called water channels, are integral membrane proteins from a larger family of major intrinsic proteins that form pores in the membrane of biological cells, mainly facilitating transport of water between cells.^[ The cell membranes of a variety of different bacteria, fungi, animal and plant cellscontain aquaporins through which water can flow more rapidly into and out of the cell than by diffusing through the phospholipid bilayer.