Week 3 Flashcards
Graves disease is characterized by __ that act like __, which __ the thyroid TSH receptors. This results in ___.
antibodies
TSH
over stimulate
Hyperthyroidism
Whats is a major sign of Grave’s Disease? Which gender does Grave’s affect the most?
Exopthalmos- Bulging of the eyes
Females
What are the 4 structural reversible changes discussed in lecture?
- Loss of RIbosomes
- Damage/ Swelling of the Mitochondria (or other organelles)
- Blebs (pouching of membrane, bulge of cytoplasm)
- Myelin Figures (dissection of cell membrane)
How many blebs may be present before it is irreversible?
1-3
How many Myelin figures may be present before it is irreversible?
1-2
The telltale sign that cell death has occured is destruction of the ___. What are the 3 types discussed in class and what do they mean?
Nucleus
Karyolysis- dissolution of nucleus
Pyknosis- Condensing of nucleus
Karryorrhexis- Fragmenting of the nucleus
Necrosed tissue is normally digested by cell ___ enzymes, expelled upon cell __; with some __ occurring as well. (normal immune response)
lysosomal
injury
phagocytosis
Coagulative necrosis implies the preservation of the __ __ of the ___ ___ for a span of at least some ___.
basic outline
coagulated cells
days
Difference between white and red infarct
- White occurs in tissue with only one blood supply (heart, spleen)
- red occurs in tissue with at least a dual blood supply . (lung, liver, intestine)
Liquefaction necrosis is __ digestion of dead cells, resulting in transformation of these tissues into a ___ ___ ___
complete digestion
liquid viscous mass
Liquefaction necrosis can often occur in the ___. The term ___ ___ is used when the brain tissue goes into liquefaction. When this occurs, __ form in the brain which fill with __ and ___ colored tissue.
CNS Ischemic stroke cavities CSF white
Casseous necrosis is described by __ granular debris seemingly composed of fragmented __ cells AND amorphous granular debris enclosed within a distinct ___ border, known as a __ reaction.
amorphous
coagulated
border
Granulomatous
2 examples of Casseous necrosis
Tuberculosis and Leprosy
Tuberculosis is a __ infection caused by the bacteria ___ ___. It causes massive __ of lung tissue, causing profuse ___.
lung
Myobacterium Tuberculosis
melting
hemorrhage
Gummatous necrosis only occurs in ___, caused by ___ ___
Syphilis (tertiary)
Treponema Pallidum
Where does Syphilis develop?
Posterior Columns and horns of spinal cord
___ ___ is the term for the involvement of the spinal cord in tertiary syhilis
Tabes Dorsalis
Syphilis can cause atrophy of the white/gray matter of the brain , leading to __ dysfunction. This is known as ___ aka ___
neurological
General paresis
General paresis of insane
Zenker’s necrosis is __ or __ necrosis of __ muscles in acute __ diseases.
waxy
glassy
skeletal
infectious
What are common causes of Zenker’s necrosis?
*Typhoid
Animal bites
muscle trauma
Typhoid is a dangerous ___ disease, usually acquired from contaminated __ or __. It is the __ most contagious disease.
GI
hands
water
3rd
Fat (Steatonecrosis) is characterized by the formation of __ soaps, produced when fat is hydrolyzed into ___ and ___
calcium
Glycerol
Fatty acids
Pancreonecrosis is an example of ___ necrosis and occurs when __ stone blocks __ and leads to degradation of ___.
Fat
gallbladder
bile ducts
pancreas
Fibrinoid necrosis occurs in the walls of ___ when ___ and ___ cells are injured and ___.
blood vessels
endothelial
smooth muscle
dying
Example of Fibrinoid necrosis discussed in class is ___- this is necrosis within the ___ muscle, seen in ___ ___
Aschoff’s Node
Heart
Rheumatic Myocarditis
Gangrene is a form of ___ necrosis and characterized by the presence of __ products of __ bacterial metabolism
Coagulative
noxious
anaerobic
Dry gangrene is a condition where coagulation is ___. It can occur due to what conditions?
sustained
Diabetes Mellitus
Atherosclerosis
Ischemia
Dry Gangrene is seen in which pathologies discussed in lecture?
Systemic Sclerosis
Buerger’s Disease
Systemic Sclerosis AKA
Scleroderma