Cardiovascular And Respiratory Flashcards
Largest vein
Inferior vena cava
Largest artery
Aorta
Valve bet right atrium and right ventricle
Tricuspid valve
Blood returns to heart from lung by
Pulmonary vein
Bet left atrium and left ventricle
Mitral valve
Biscuspid
Aorta branch that supplies the heart
Coronary arteries
Why are they called blind ended lymphatic capillaries
As they only return to the heart 1 direction
Where do the cardiovascular and lymphatic system meet
Large veins in neck
Elephantiasis
Mosquito carrying round worms blocking lymph vessels
Chronic edema
Skin thickening
Artery vs vein parts
Tunica intima>simple squamous
Tunica media>smooth muscle more in artery
Tunica externa/adventitia>CT more yellow fibers in artery
Which has a bigger lumen artery or vein
Vein
Cell injury in artery wall is..
In case of…vessel inflammation
Fibrinoid necrosis
Vasculitis
In fibrinoid necrosis what happens
Necrosis of smooth muscle
Death of endothelium
Allow plasma proteins (fibrin) to deposit
What is virchows triad
Thrombosis cause>
*Endothelial injury, atherosclerosis, vasculitis
*hypercoagulability, genetic, acquired
*Abnormal blood flow
Abnormal blood flow in artery vs vein
Artery>aneurysm, turbulence
Vein>varicose veins, stasis
Left lung has ….right lung has….both made up of …..tissue
3 lobes
2 lobes+cardiac notch
Elastic
Cells in alveoli
Type 1 pneumonocytes> simple squamous, gas exchange, blood air barrier
Type 2 pneumonocytes> surfactant,simple cuboidal,septal cells
Macrophages/dust cells
Surfactant importance
Prevents lung collapse and has bactericidal properties
An infection in Lung
Streptococcus pneumonia
Infects terminal air space with no antibodies
Inflammation and pneumonia
Acute vs chronic pneumonia
Acute:inflammation in alveoli abnormally filled with bacteria ,immune cells, fluid
Chronic: enlargement of alveoli as adjacent chambers break, lung fibrosis, emphysema
Symptoms of emphysema
Short breathing(high energy to exhale)
Cyanosis, blue fingertips
Cor pulmonale
Cor pulmonale
Myocardial infarction due to return of deoxygenated blood to right atrium causing blockage
