quiz5 Flashcards
enlargement of the thrombus in areas open to clotting factors and their activation; therefore usually in veins where flow is slow and are bifurcations
propagation
1 cause of death in USA
Infarction
region of necrosis caused by oxygen oxygen deficiency
infarct
white infarct
develops in tissues that have 1 blood vessel supply
ie: coronary
red infarct
tissue is supplied by 2+ blood vessels
ie: lungs pulmonary and bronchial artery
most common infarction
myocardial infarction
brain infarction aka
ischemic stroke
most common area for stroke
ischemic stroke
what is followed by replacement of lost heart tissue
coagulative necrosis
what kind of necrosis happens in an ischemic stroke
liquefactive necrosis with cavity formation
what is responsible for repairing the lost brain tissue
neuroglia doesnt shrink
why is neuroglia responsible for repairing brain tissue
because if CT were responsible for repair it would further damage the brain because CT shrinks as it heals.
process of repair via neuroglia in the brain does not shrink which is a huge advantage for the brain
gliosis
MCC of infarction is
thrombosis
obstruction in basilar artery
stroke
obstruction in coronary artery
myocardial infarct
swelling of inflammed tissue due to autoimmune disease
vasculitis
most common factor that results in infarction
athrosclerosis
temporal arteritis aka
giant cell arteritis
hortons disease
acute/chronic granulomatous vasculitis
symptoms of arterial infarction
HA
arteries are visible and tender upon palpation
fever
weakness
temp loss of vision can result in blindness
NSAIDS dont work
what is the main treatment for arterial infarction
corticosteroids therapy
what often accompanied arterial infarction?
polymyalgia rheumatic
venous infarctions
paraesophegeal hernia
sheehans syndrome
stomach protrudes through diaphragm into thoracic cavity
flexion/compression of the diaphragm veins of the stomach are occluded preventing outlfow of venous blood(arteries are not occluded because the pressure is higher)
leads to increased hydrostatic pressure in the veins
paraesophegeal hernia