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GAS EXCHANGE AND INTERNAL TRANSPORT, pair of openings, chamber - Coggle…
GAS EXCHANGE AND INTERNAL TRANSPORT
Gas exchange
invaginated systems
Gases like oxygen and carbon dioxide enter and exit the invertebrate body through
involutions of the outer surface
Two types
book lung system
arachnids
or leaf-like stacks plates over which air circulates through slits on the abdomen.
hemolymph
hemocyanin.
Book lungs are saturated
in light blue hemolymph.
Air bathes the outer surface of the plates and the hemolymph circulates within them,
tracheal system
insects, some spiders
composed of branching tubes that deliver oxygen to, and remove carbon dioxide from, the tissues.
spiracles
pores associated and situated outside the body
connected to a system of branched elastic air tubes called
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aquatic condition
air bubble system in Corixid bugs due to plastron
consumption of oxygen = decrease in partial pressure
mosquito wrigglers, tabanid larvae, and other aquatic dipteran larvae
breathe through siphon
terrestrial condition
organs
book lungs
gills
trachea
nutrients transport
internal transport systems
two types of circulatory systems
closed type
blood is circulated through well-
defined blood vessels
annelids
earthworms
three main vessels
dorsal blood vessels
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ventral blood vessels
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aortic arches
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open type
hemolymph is circulated though the activity of a dorsal longitudinal vessel composed of a posterior heart and an anterior aorta
Arthropods
insects
coackroach
hemocoels or sinuses
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heart
ostia
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alary muscles
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closed posterior end
anterior end continued forward as the anterior aorta.
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spiders
blood vessels are absent
hemolymph is pumped by a heart to hemocoels
pair of
openings
chamber