Cell Injury and Death Flashcards
cell death
necrosis
cell suicide
apoptosis
lack of blood and therefore O2 to the tissue
ischemia
nucleus dissolves with loss of affinity for basic stains
karyolysis
nucleus shrinks and becomes dense
pyknosis
nucleus breaks down into small fragments and chromatin breaks up into unstructured granules throughout cytoplasm
karyorrhexis
what controls cell growth and differentiation
genetic factors
increase in number of cells
hyperplasia
increase in cell size
hypertrophy
absence or imperfect tissue development
agenesis
total failure of organ to develop
aplasia
deficiency of growth or diminution of size
hypoplasia
reduction in size of an organ
atrophy
replacement of a cell type with another
metaplasia
normal development of a tissue with disordered architecture
dysplasia
calcium is deposited into injured or dead tissue
dystrophic calcification
calcium deposited into tissues that are not the site of previous damage
metastatic calcification
brown-black pigments normally found in the skin, hair, and retina used for UV protection
melanin
pigment in RBCs responsible for transport of O2
hemoglobin
when RBCs die…
hemoglobin is released and breaks down into amino acids, biliruben, and iron and is converted into bile in the liver
when iron is part of the hemoglobin is altered and doesnt carry O2 well, animal will appear blue
methemoglobin
yellow pigment from Hgb during normal and abnormal destruction of RBCs, animal will appear yellow
bilirubin
