Answer:
<h2>surface tension from pleural fluid and negative pressure in the pleural cavity</h2>
Explanation:
Each lung enclosed in two membranes called the pleurae . The outer membrane is called parietal pleura , and the inner membrane is called visceral pleura , which closely invest the lungs . A very narrow space exist between two pleura i.e., known as pleural cavity that contains pleural fluid secreted by the pleurae . Pleurae cause the production of pleural fluid and create cavities that seperates organ . Mesothelial cells of both pleural layer secretes fluid and cause lubrication on the surface . These lubrication mimize the friction between pleural layer to prevent the difficulty in breathing and creates surface tension that is responsible for holding the lungs to the thorax wall . Generally , pressure within cavities present between pleural layers is less than atmospheric pressure i.e., negative pressure in the pleural cavity which is also responsible for holding the lungs to the thorax wall .
Answer:
Plant life in ancient because if you compress plant hard enough it will turn into coal
Hi the T and B cells change after contact with the pathogen is a-- acquired-- immune response.
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Through a cut or an injury where any skin has been broken.
An infection through an animal's bite or sting.(Like the West Nile Virus which spreads though mosquito bite, or Rabies though an infected mammal's bite).
Can be inhaled or consumed and go from the lungs into the other organs causing harm internally.
