ABNORMALITIES IN CELL GROWTH Flashcards
RETROGRESSIVE CHANGES:
- incomplete development of the organ
APLASIA
RETROGRESSIVE CHANGES:
- failure of an organ to develop fully
HYPOPLASIA
RETROGRESSIVE CHANGES:
- complete non-appearance of an organ
AGENESIA
RETROGRESSIVE CHANGES:
- failure of an organ to form an opening
ATRESIA
Acquired decrease of the size of a normally developed organ
ATROPHY
Increase cell SIZE
HYPERTROPHY
- Changes in ADULT FORM of cell
DEGENERATIVE CHANGES
Increase in CELL POPULATION
HYPERPLASIA
SECONDARY CHANGES OF DEATH:
- occurs immediately after death; apparent only in autopsy
POST-MORTEM CLOTTING
DEGENERATIVE CHANGES:
- lack of differentiation of cells
ANAPLASIA
DEGENERATIVE CHANGES:
- means new growth; uncontrolled proliferation of cells with no purpose
NEOPLASIA
DEGENERATIVE CHANGES:
- replacement of one cell type of cells to
another type in the same site (reversible)
METAPLASIA
DEGENERATIVE CHANGES:
- means “DISORDERED GROWTH”
DYSPLASIA
CHARACTERISTICS OF TUMORS
- May resemble and function like a normal cell
- Autonomous; non-responsive to normal growth factors
- Parasitic nature; competes with cells for metabolic needs