Cell injury Flashcards
whats a common sign of reversible injury
swelling of cells
whats a common sign of irreversible injury
cellular membrane damage - inside or outside of the cell
what happens when calcium if free in the cell
calcium channels are overactivated and everything in the cell is excreted
how does calcium become free in the cell
mitochondria stores break
why do cells swell
atp production decreases stopping sodium pumps controlling sodium levels leaving water to osmosis in
what is pyknosis
irreversible condensation of chromatin
what is hypertrophy
an increase in the cells size
what is hyperplasia
increase in number of cells
what is atrophy
decrease in the size of a organ/tissue
what is metaplasia
when one type of cell transforms into another type
why does metaplasia happen
when cells are under stress making them better suited to withstand that stress
why does atrophy happen - 3
disease, lack of blood supply, lack of use
