Biology:Potential space

From HandWiki
Short description: Space between two anatomically adjacent structures that are normally pressed together


In anatomy, a potential space is a space between two adjacent structures that are normally pressed together (directly apposed). Many anatomic spaces are potential spaces, which means that they are potential rather than realized (with their realization being dynamic according to physiologic or pathophysiologic events). In other words, they are like an empty plastic bag that has not been opened (two walls collapsed against each other; no interior volume until opened) or a balloon that has not been inflated. The pleural space, between the visceral and parietal pleura of the lung, is a potential space.[1] Though it only contains a small amount of fluid normally, it can sometimes accumulate fluid or air that widens the space.[2] The pericardial space is another potential space that may fill with fluid (effusion) in certain disease states (e.g. pericarditis; a large pericardial effusion may result in cardiac tamponade).

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References

  1. Saladin, Kenneth S. (2011). Human anatomy (3rd ed.). New York: McGraw-Hill. pp. 643–644. ISBN 9780071222075. OCLC 780984149. 
  2. Weinberger, S (2019). Principles of Pulmonary Medicine (7th ed.). Elsevier. pp. 206–207. ISBN 9780323523714. 
  • Guyton, Arthur (2006). Textbook of Medical Physiology. St. Louis: Elsevier Saunders. ISBN 978-0-7216-0240-0.