3. Cell Injury Flashcards Preview

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Flashcards in 3. Cell Injury Deck (19):
1

How do you get a lipid out of the liver?

Put an apoprotein around it

2

What happens if you can't get lipids out of the liver?

Fatty liver, hepatomegaly

3

Where is hemosiderin located?

Macrophages in bone marrow

4

What is dystrophic calcification?

Abnormal calcification; means you have damaged tissue

5

What is the most common histologic finding on aortic stenosis?

Dystrophic calcification on bicuspid aortic valve

6

What is metastatic calcification?

High calcium (or phosphate) in normal tissue

7

If you can't see a central area of pallor on an erythrocyte it's what?

Spherocytosis

8

What are Mallory bodies?

ubiquinated keratin in alcoholic hepatitis

9

What 3 cells do you think of for labile cells?

Stem cells - bone marrow, base of intestinal crypts, skin

10

Most of our parenchymal tissues are what kind of cell?

Stable cells

11

What is the only muscle that is not a permanent cell?

Smooth muscle - can undergo both hypertrophy and hyperplasia while skeletal muscle can only undergo hypertrophy because they are permanent cells

12

Which cell phase is variable?

G1 - the others are fixed

13

What does Rb protein do?

Prevents cell from going G1 to S phase

14

How do we remove Rb suppression?

Phosphorylation (Cyclin dependent kinase)

15

How does p53 relate to Rb?

Inhibits cyclin dependent kinase so that Rb won't be phosphorylated so it prevents cell from going into S phase

16

What cell phase do you make tubulin?

G2

17

Where do vinca alkaloids work?

Mitotic spindle (think M phase)

18

Which layer of the adrenal gland is unaffected by hypopituitarism?

Zona glomerulosa because ACTH has nothing to do with aldosterone secretion (atrophy of the fasciculata and reticularis)

19

What growth disturbance is psoriasis an example of?

Hyperplasia