Quiz 2 Flashcards
Atrophy
Decrease the size and function of cell because of low nutrients and energy
Hypertrophy
increase in size and function due to increased demands
Hyperplasia
increase in cell population–mitosis
Metaplasia
conversion from one cell type to another–adaptive response
Dysplasia
abnormal variations in size, shape, arrangement usually cancerous
Necrosis
cellular explosion and release of contents that cause inflammation
Apoptosis
programmed cell death, phagocytosis–no mess
Apoptosis: extrinsic signals
happens externally–growth factors, cell-to-cell interaction, O2, etc.
Apoptosis: intrinsic signals
Internally– DNA damage, mitochondrial failure, oxidative stress
Hypoxia
oxygen deficiency, impacts production of cellular ATP
Ischemia
most common type of hypoxia, reduced blood flow so lack of waste removal and nutrient delivery