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Respiratory system in an insect.
3. Respiration through gills
Organisms Organ Mechanism of
Respiration
Fish and other aquatic Gills- They are covered Thin filaments are
organisms such as crabs withoperculum. Thin surrounded by a dense
and some amphibians. filaments are present inside network of capillaries
gills. around them. Exchange
of gases takes place
through these capillaries.
Operculum allows water
containing dissolved
oxygen to enter and pass
over the gills to give
oxygen and receive
carbon dioxide. Finally,
the water passes out
from under the
operculum.
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