respiratory and cardiovascular disease Flashcards
what is asthma?
common lung condition that causes intermittent breathing difficulties of varying severity
how do we call the asthma if it is dev later in life?
“late-onset” asthma
what contains the inhaler that treats asthma?
bronchodilator and an inflammatory glucocorticosteroid
what are the anthologies of asthma?
intrapulmonary bronchus is mostly block by mucus plug
the airway lumen is completely blocked by the plug
mucus producing goblet cells increase (=hyperplasia)
the basement membrane is thicker
increase in mass of airway smooth muscle
increase in size of mucus producing submucosal glands
increase in number of blood vessels
are the current treatment for asthma effective?
relatively, severe asthma is not well-controlled on current therapy
what is the chronic obstructive pulmonary disease (COPD)?
medical condition that affects the lungs that affects breathing out quickly and is caused by inhaling noxious materials
what are the 3 processes that go on in COPD?
chronic bronchitis
emphysema
damage to blood vessels in lungs
what are the pathologies of COPD?
main bronchus’ lumen is partially occluded by a large mucus plug
smaller airways are almost completely blocked
increase fibrosis closing down bronchioles
marked reduction in alveolar attachments
dark coloured lung with ragged edges
dark interior of lung and numerous holes in the parenchyma
are the current treatment for COPD effective?
no
what are the current treatment for COPD?
use of bronchodilator and anti-inflammatory glucocorticosteroids EVENTHOUGH ineffective
what are the different causes of cardiovascular diseases?
inflammation
apoptosis and necrosis
oxidative stress
mechanical injury
what is atherosclerosis? where can it occur? what is it caused by?
disease in which plaque builds up inside the arteries which narrows the channels
it can occur in any area of the body BUT most serious when it happens in the heart or blood vessels leading to the brain
caused by excessive inflammatory-fibroproliferative response to numerous different forms of vascular insult
what is the principle cause of myocardial infarction, stroke and gangrene of the extremities?
atherosclerosis
what is atherosclerosis initiated by?
it is initiated by endothelial damage/activation
what is pulmonary hypertension?
disease characterised by high blood pressure in pulmonary arteries