MICROANATOMY

Detailed explanation-1: -Pneumonia is a condition characterized by an infectious inflammation of the lung parenchyma and deposition of pus within the alveoli. Pneumonia can be caused by bacteria (e.g., Methicillin-resistant Staphylococcus aureus (MRSA)), fungi (e.g., pneumocystic cainii), and viruses (e.g., cytomegalovirus (CMV)).

Detailed explanation-2: -What Is Pneumonia? Pneumonia is an infection of the lungs that may be caused by bacteria, viruses, or fungi. The infection causes the lungs’ air sacs (alveoli) to become inflamed and fill up with fluid or pus. That can make it hard for the oxygen you breathe in to get into your bloodstream.

Detailed explanation-3: -If a person has pneumonia, the alveoli in one or both lungs fill with pus and fluids (exudate), which interferes with the gas exchange. This is sometimes known as ‘consolidation and collapse of the lung’.

Detailed explanation-4: -Bacterial Pneumonia. Bacterial pneumonia is an acute inflammation and consolidation (exudate fills alveoli) of lung tissue caused by bacteria.

Detailed explanation-5: -Pneumonitis occurs when an irritating substance causes the tiny air sacs (alveoli) in your lungs to become inflamed. This inflammation makes it difficult for oxygen to pass through the alveoli into the bloodstream.