Intro altered cell and issue biology Flashcards
Healthy individuals depend on the ____ of their cells
integrity
Define Disease
integrity of some cells impaired but body system still functions. Compensates for survival
When does death occur regarding to cellular level
unable to compensate for pathology
8 major functions of a healthy cell
- movement
- conductivity
- metabolic absorption
- secretion
- communication
- reproductivity
- respiration
- excretion
Cell death and damage is a result of:
loss of communication
5 processes that impair cell function
- cellular adaptation
- cell injury
- neoplasm
- aging
- cellular death
Name 4 types of necrosis
- coagulation (MI)
- Liquefactive (CNS)
- Caseous (Granuloma)
- Fatty (acute pancreatitis)
Define cellular adaptation
cell is neither normal or injured. can be reversable
Atropy
loss of intracellular proteins
Physiological atropy
normal develop (thymus)
Patho atropy
occurs without disease
Aging results in:
normal loss. organs decrease ability to respond to stress. decrease ability to maintain homeostasis. cells unable to divide, damage, genetics
Hypertrophy
working out, increase size of cell
Hyperplasia
increases # of cells due to increase cell division
Cell injury
reversible or irreversible