Final as well Flashcards
(26 cards)
oxidizing agents that are irritants to the respiratory tract and have brownish/yellowish gas
NO/NO2
nitrogen oxides
nitrogen oxides (and all oxidizing agents cause)
agents cause Hb → MetHb
o Type of Hb O2 can bind to is Ferrous Hb (Fe2+) → (Fe3+) limited by
MetHb Reductase
• N2O – nitrous oxide – not an
air pollutant
• Halogenated Nitrocarbons
o Chloroform Carbon tetrachloride – used as dry cleaning agent
o DDT – banned in 1972, but still around
Can cause cardiac arrhymias
• Halogenated Nitrocarbons
primary air pollutants that result in ACID RAIN and environmental pollution
sulfur dioxide and trioxide grouped together
sulfur dioxide and trioxide these are irritant gasses of the
respiratory tract
not an air pollutant
• N2O – nitrous oxide
explosive anesthetic
ether
Caseous necrosis cause
TB
o reduced blood supply to a tissue results in
gangrenous necrosis
High irritant gases – targets
Upper Respiratory Tract
Low irritant gases cause
delayed onset Pulmonary toxicity
CO attaches to Hb
carboxyHb
Major controllable source of primary APs
automobile transmissions
Secondary APs
- PANs – Per-oxy Acyl Nitrates
- HCHO – Formaldehyde
- O3 – Ozone
- Chlorine Gas, Ozone gas, Formaldehyde – low irritants
Particulate matter can get down into _____
alveoli
strong acids disassociate in ____ environment
aqueous
most ____ acids are strong
inorganic
phenol causes _____ necrosis
coagulative
all inorganic acids cause
precipitative necrosis
necrosis is self limiting
precipitative necrosis
precipitative necrosis vs liquifactive
precipitative=scar formation
liquifactive=no scar
