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Tracheal

tracheal

Relating to the trachea.


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Chitinous

... and respiration systems seem to play a major part: the bigger the animal, the bigger portion of its body cavity needs to be reserved for tracheal tubes, and eventually there is not enough room for big enough tubes. Thus, there were giant insects millions of years ago, when there was also ...

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by biohazard
Thu Oct 22, 2009 7:48 am
 
Forum: Zoology Discussion
Topic: Chitinous
Replies: 6
Views: 5105

Why can't hemolymph in insects carry oxigen??

Simple diffusion alone would not be enough to provide oxygen to larger or more active insects' tissues. Diffusion in insects is aided by the tracheal system, which delivers oxygen to all its tissues; this is aided further in some insects by simple ventilation due to movement of wings and muscle ...

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by Jammerz
Mon Sep 24, 2007 10:07 pm
 
Forum: Physiology
Topic: Why can't hemolymph in insects carry oxigen??
Replies: 11
Views: 14080

Why can't hemolymph in insects carry oxigen??

Except that diffusion's not the right answer - insects use a separate oxygen distribution system, the tracheal system, although some do carry oxygen in the hemolymph, using a variety of carriers. Insects are too large (and waterproof) and have metabolisms that are much too ...

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by Darby
Mon Sep 24, 2007 7:24 pm
 
Forum: Physiology
Topic: Why can't hemolymph in insects carry oxigen??
Replies: 11
Views: 14080

Difference in Phylums?

... include blood composition : annelids have free hemoglobin in their blood, arthropods don't have any pigment in their blood since they have tracheal respiration and the others have hemocyanine as respiratory pigment (also circulating free in the blood).

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by xand_3r
Thu Mar 08, 2007 10:40 am
 
Forum: Physiology
Topic: Difference in Phylums?
Replies: 4
Views: 6027

I accidentally cut a cockroach's half part of the abdomen.

satrohraj - really All??? So why you posted this topic? Spiders die more rapidly if they cuted, becouse they (most of them) have not tracheal systrm and oxygene suppled to they's tissies by the blood, so if we will cut they's body (cat off relative large part) we destroy blood system and ...

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by Locus
Mon Feb 26, 2007 3:28 pm
 
Forum: Zoology Discussion
Topic: I accidentally cut a cockroach's half part of the abdomen.
Replies: 15
Views: 8123
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