- Blood volume in lungs= 450ml, 9% of total blood volume.
- Blood flowing through Bronchial arteries- 1-2% of total Cardiac Output
- Pulmonary Vascular resistance= 1/7 of systemic vascular resistance
- Mean pressure= 15mmHg
- Pulmonary arteries constrict in response to hypoxia.
- Perfusion and Ventilation both are more in lower lobes
- Ventilation/resistance is maximum at the apex.
- Pulmonary veins are collapsed in upper and middle lobes, distended in lower lobes. This is because pressure in pulmonary veins of upper and middle lobes is less than atmospheric pressure. This causes the veins to collapse.
FDA approved does not mean safe. The FDA in recent years has been approving some deadly medicines that kill people, only to later 'recall' them from the market. By the time the pharmaceutical company (makers of the deadly drug) make huge profits and FDA people get their cut through legalized quid pro quo. Making money out of people's health is nothing new for those sitting in high positions of the 'health industry'. Infact it has reached a sadistic proportions where these people enjoy it. Because now the Big Pharma is involved in eugenics and depopulation agenda. Still in Clinical Trails but 'Approved'. Forget about the 'rare' drugs or drugs used in rare diseases, a common, over the counter heart burn medicine such as Ranitidine (Rantac/Zantac) was pulled off the market by the FDA because it had a carcinogenic substance called NDMA in it. It has been known to cause heart attacks, liver failure, triggering porphyria attacks and pneumonia . Imagin...
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