Reasons for Cellular Adaptations/Changes
Hormones, environmental Stimulus
Atrophy
decrease in cell size
hypertrophy
Increase in cell size
Hyperplasia
increase in cellular number
Metaplasia
Replacing a mature cell with another mature cell
Dysplasia
cells vary in shape and size ( most dangerous cellular adaptation)
Anaplasia
Cell lose normal stucture and function (abnormal) (undifferentiated)
Neoplasia
New and uncontrolled growth of cells (tumors)
Angiogenesis
Formation of new blood vessel from pre-existing blood vessels
(helps tumors receive nutrients and O2 to grow)
Primary Level of Prevention
Repent disease from happening (vaccine)
Secondary Level of Prevention
Prevent recurrence of disease ( baby aspirin for MI)
Tertiary Prevention
Prevent complication for chronic disease (insulin for diabetes)
Necrosis
death of body cells or tissues
Gangrene
Necrotic tissue invaded by bacteria
Apoptosis
programmed cell death
Ischemia
decrease in O2 in cell (block in blood flow)
Hypoxia
decrease in O2 in tissue
Chemical toxins (Exogenous )
from environment
Chemical toxin (endogenous)
from within
diagnosis
Identification of disease
Etiology
elements that caused the disease
Idiopathic
unknown cause
Iatrogenic
Illness/problem caused my medical treatment , procedure, meds
Predisposing factors
Factors that increase vulnerability for disease