Necrosis

Question 1

what is the definition of necrosis?

Answer 1

a condition of cell death thru injury of diseases, especially ina localized area of the body

Question 2

whatv poart of the cell goes under digestion?

Answer 2

cytoplasm

Question 3

What does the lysosome of the necrotic cell release?

Answer 3

lysosomal enzymes

Question 4

what is coagulative necrosis?

Answer 4

implies the preservation of basic outline of the coagulated cell for period of at some days

Question 5

what 3 things is necrosis characterized by?

Answer 5

a. denature of cyto plasmic proteins
b. break down of cell organelles
c. cell swelling

Question 6

what is white infartion?

Answer 6

single blood supply

Question 7

what is red infarction?

Answer 7

dual blood supply

Question 8

what is liquefactive necrosis?

Answer 8

complete digestion of cells resulting in transformation of tissue into a liquid viscous mass

Question 9

what is an example of liquefactive necrosis?

Answer 9

ischemic stroke of the brain

Question 10

wha t is casseous necrosis?

Answer 10

amorphous granular debris seemingly composeed of fragmanted coagulated cells

Question 11

what is amorphous granular debris?

Answer 11

enclosed within a distictive site inflammatory border known as granulomatous reaction

Question 12

what does granuloma mean?

Answer 12

collection of immune cells that are trying to get rid of a foreign substance

Question 13

what are examples of casseous necrosis?

Answer 13

TB and leprosy

Question 14

what is gummatous necrosis?

Answer 14

develops only in syphilis

death of tissue is caused by treponema pallidum

usually acquired by sexual transmission

Question 15

what is primary syphilus?

Answer 15

single chancre

Question 16

what is secondary syphilus?

Answer 16

involves skin usually hands and feet

Question 17

what is tertiary syphilus?

Answer 17

involves the aorta 80-85% of the time years later

and involves the CNS 5-10% of the time

Question 18

What part of the spine does tertiary effect?

Answer 18

the posterior columns

Question 19

what name does it receive when effecting the posterior columns?

Answer 19

tabes dorsalis

Question 20

what is the name when the grey matter is atrophied?

Answer 20

general paesis

aka general paresis of insane

Question 21

what are characteristics of Zenkers necrosis?

Answer 21

glassy waxy necrosis of the skeletal muscle

Question 22

what is zenker’s necrosis (the disease) called?

Answer 22

typhiod fever

Question 23

how do you contract zenkers necrosis?

Answer 23

salmonella bacteria

can also be caused by a snake bite

Question 24

what is fat necrosis?

Answer 24

necrosis of the adipose tissue

characterized by small quantities of soap bubbles

Question 25

where does fibriniod necrosis occur?

Answer 25

in the walls of blood vessels when edothelial cells and smotth muscle cells are injured/dying

Question 26

what is an example of fibrinoid necrosis?

Answer 26

Aschoff's nodes; seen in rhuematic fever

Question 27

what is gangrene necrosis characterized by?

Answer 27

anaerobic bacterial metabolism

Question 28

what causes dry gangrene ischemia?

Answer 28

lack of oxygen supplied to an organ or tissue

Question 29

dry gangrene in the distal parts of the body is known as?

Answer 29

systemic sclerosis

Question 30

what is atherosclerosis?

Answer 30

Buerger's disease affects nerves and veins not arteries caused by smoking

Question 31

what is dry gangrene diabetes mellitus?

Answer 31

obliteration of the distal small vessels

Question 32

what is wet gangrene?

Answer 32

phagocytic cells break down the necrotoc debris and produce some liquefaction

Question 33

what causes wet gangrene?

Answer 33

anaerobic bacteria clostridium perfringes and bacillus fusiform

Question 34

Wet gangrene in the distal parts of the fingers in known as?

Answer 34

polyarteritis nodosa

Question 35

what causes intestinal gangrene?

Answer 35

anaerobic bacteria

Question 36

what is gas gangrene?

Answer 36

bacterial infection that produces gas within tissue common inthe military

Question 37

what causes gas gangrene?

Answer 37

clostridium perfrimges anaerobic streptoccocci