3/14/17 CLAYTON Basis of pathology cell response to stress TEST #3 Flashcards
Cause/Etiology —–> ________ ——-> Morphologic changes ———-> __________
- Pathogenesis
- Clinical consequences & prognosis
What is ischemia?
-Lack of oxygen to tissues
Different types of cell adaptations are a response to what?
-Direct cellular injury or stress, or to changing hormonal or chemical signals
What does hyperplasia mean?
-Get more cells
What does Metaplasia mean?
-One type of tissue is replaced by another type of tissue
What does dysplasia mean?
-Disordered hyperplasia without maturation
If you have cardiac hypertrophy what happens to the cells of the heart?
-They get enlarged
What is atrophy?
-Cellular shrinkage or loss
What caused atrophy?
- lack of hormonal signals
- loss of innervation
- Lack of use
- Loss of blood supply
- starvation
- individual cell death
What does cachexia mean?
-fatty atrophy
When is cachexia fatal?
-68% of normal body weight
T/F Hyperplasia can occur with hypertrophy
True
What are five organs that can get hyperplasia?
- BPH (prostate)
- Liver
- Kidney
- breast
- endometrium
What is smoker’s airway an example of?
-Metaplasia
What is Barrett’s esophagus an example of?
-Metaplasia
T/F Dysplasia never happens in the uterine cervix
False
-It does happen
Bowel in inflammatory bowel disease is an example of what?
-Dysplasia
What are two classes of cells that are most prone to injury?
- High metabolic activity cells
- Rapidly proliferating cells
What are three examples of high metabolic activity cells?
- Cardiac myocytes
- Renal tubular cells
- Hepatocytes
What are three examples of rapidly proliferating cells?
- Testicular germ cells
- Intestinal epithelium
- Hematopoietic cells
If you have damage to a cell but it is not enough to kill the cell is it reversible or irreversible damage?
-Reversible
Is toxic liver injury an example of irreversible or reversible damage?
-Reversible