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465809
Cardiovascular disease:
Descrição
Mapa Mental sobre Cardiovascular disease:, criado por Cococourts em 06-01-2014.
Mapa Mental por
Cococourts
, atualizado more than 1 year ago
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quase 11 anos atrás
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Cardiovascular disease:
Coronary Heart disease
Narrowing: Coronary arteries that supply blood &oxygen to heart.
Usually: from the build up of LDL cholestrol in walls of arteries
Symptoms: Angina, shortness of breath, myocardial infarction.
Loss of elasticity of arteries involved
Myocardial Infarction
Areas of myocardium (heart muscle) die due to an interruption of blood flow
Usually: from a blockage from atherosclerosis
Symptoms: Angina, shortness of breath
Atheroma (Atherosclerosis)
Plaque causes obstruction (atheromatous plaque)
Combination of cholestrol, triglycerides & blood components
-> Atheroma formation -> Fat deposits become invaded by fibrous tissue & then calcified
Symptoms: Angina, shortness of breath
Aneurysm (Aortic)
Dilation of a portion of the aorta, usually at site of weakness in the aortic wall.
Can rupture -> dissecting aneurysm & can cause blood loss, circulatory shock, rapid death.
Increased risk: Smoking, inheritence
Asthma
Allergens: -->
Lining of airways -> inflamed
Epethelial cells secrete more mucus
Fluid leaves capillaries & enters airway
Constriction of bronchi
Symptoms:
Breathing difficulty
Wheezing (when breathing)
Tight feeling in chest
Coughing (reflex response to the obstructed bronchi & bronchioles - effort to clear them)
Emphysema
Smoking: causes alveoli in lungs to collapse & reduce SA & elastacity in the lungs
Symptoms:
Shortness of breath
Chronic cough
Oxygen deficiency = blue skin
Tight chest
Fibrosis
Scars form on the epithelium & thicken
Gas diffusion = Harder
Oxygen's unable to diffuse
Lung elasticity = reduced
Symptoms:
Shortness of breath (lungs fill up with fibrous tissue)
Chronic cough (breathing difficulty)
Pain & discomfort
Weakness & fatigue
Tuberculosis
Inhalation of droplets to the upper region of lungs:
Bacteria grows & divides
White blood cells form at the infection site
Innflamation of lymphoctus
Bacteria's able to sit dorment
Symptoms:
Persistent cough
Coughing blood & fever
Loss of appetite
Fatigue
Treatment:
Vaccination, medication, improving housing, health facilities, nutrition -> strong immune system
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