Air vesicle meaning

Air vesicle refers to a small air-filled cavity found in certain marine or freshwater organisms.


Air vesicle definitions

Word backwards ria elcisev
Part of speech Noun
Syllabic division air / ves-i-cle
Plural The plural of the word "air vesicle" is "air vesicles."
Total letters 10
Vogais (3) a,i,e
Consonants (5) r,v,s,c,l

When it comes to the respiratory system of fish, one crucial structure that aids in respiration is the air vesicle. This specialized organ plays a vital role in regulating the fish's buoyancy and assisting with gas exchange.

Structure of Air Vesicle

The air vesicle is a gas-filled sac located in the dorsal part of the fish's body cavity. It is connected to the esophagus of the fish and allows them to regulate their buoyancy by adjusting the volume of gas within the vesicle.

Function of Air Vesicle

One of the primary functions of the air vesicle is to provide the fish with buoyancy control. By adjusting the volume of gas within the vesicle, the fish can change its overall density and control its depth in the water column.

Gas Exchange

Another important function of the air vesicle is to aid in gas exchange. The walls of the air vesicle are thin and highly vascularized, allowing for the exchange of gases such as oxygen and carbon dioxide with the bloodstream.

Overall, the air vesicle is a crucial organ for fish, helping them maintain buoyancy, regulate their depth in the water, and facilitate efficient gas exchange to support their respiratory needs.


Air vesicle Examples

  1. The air vesicle in the inflatable kayak allows for easy transportation.
  2. The bird's air vesicles enable it to stay buoyant while flying.
  3. The air vesicle attached to the fishing net helps keep it afloat.
  4. The diver's air vesicle malfunctioned, causing him to quickly rise to the surface.
  5. The air vesicle in the life jacket provides emergency flotation.
  6. The plant's air vesicles allow it to float on water.
  7. The air vesicles in the lungs aid in the exchange of oxygen and carbon dioxide.
  8. The air vesicle on the inflatable pool toy deflated overnight.
  9. The air vesicle in the inflatable mattress provides cushioning for a comfortable sleep.
  10. The air vesicles in the roots of water plants help them absorb nutrients from the water.


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  • Updated 20/04/2024 - 22:46:32