Respiration in fishes, Biology

RESPIRATION IN FISHES -

  • Respiratory organs are gills. In elasmobranchi 5-7 pairs of gills present, spiracles present.
  • In Teleostomai 4 pairs gills present, covered by operculum. Respiration by gills is brachial respiration.
  • Each gill is made up of two rows of gill filaments that project from the pharyngeal wall into the gill chamber.
  • Each gill filament leave a series of thin, leaf like gill lamellae.
  • A gill lamellae contains a network of capilalries covered by a thin epithelium.
  • For brachial respiration water enters through mouth.

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Posted Date: 10/1/2012 8:40:30 AM | Location : United States







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