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Do they have hearts? Lungs? Blood? Do they have little insect brains?

If they dont have hearts and blood etc how do they move themselves around?

2006-07-04 11:09:19 · 6 answers · asked by Chimera's Song 6 in Science & Mathematics Zoology

6 answers

First of all, none of these answers are entirely correct, but all correct in parts. Bigt, I know your ex didn't tell you that, because if I'm right, Christina has more sense than that, if that's who I'm thinking of. Insects have a heart of sort, in that it is a vessel that makes sure the haemolymph (insect blood) is constantly flowing throughout the body. The blood does not carry oxygen like ours does, as oxygen is delivered directly to their muscle tissue via their breathing system.
They breathe through small tracheae throughout the body. Most segments in their body (save the head) have what are called spiracles on both sides. When the spiracle opens, air flows in, through the tracheae, branches off into trachioles (like branches off the tracheae, and then directly to the muscle tissue.
Insects do have muscle tissue, although it is a different type than ours. In fact, most insects have more muscles in their body than we do, about 600 and change for us and up to well over a thousand for insects. Bigt is right in saying that some use a hydraulic system, although that is more exception than rule.
Finally, insects do have "brains" and in many insects, they're referred to as mushroom bodies. There are ganglia both above and below the esophagus, the one above being the mushroom body, and the one below the sub-esophageal ganglion. There are also several other ganglia throughout the body, each regulates a specific task, whether it be flying or walking or copulating. In rare instances when male mantids are decapitated during copulation (which is again more exception to the rule, romantics love to blow their behavior out of proportion) it aids their copulation ability because most of the distracting sensory imput signals no longer have something to receive them, nor a brain for them to go to.

Hope this answers your question

2006-07-05 17:20:41 · answer #1 · answered by Anonymous · 4 0

Most insects have no muscles. They move their limbs with fluid. We call this hydraulics. It is the same system we use to move heavy equipment such as a back hoe or a dump truck. This system is very effective for moving large heavy objects, such as boulders and large amounts of dirt. This is why the ant can lift things like small sections of leaves, sticks, pebbles etc which are several times their own body weight. Some insects do have a kind of muscle system, like the grass hopper. Although it's not truly a muscle. The grass hopper has a small section of a tendon like substance which it can pull tight like a rubber band. When the grass hopper jumps it is simply the release of this tension.

Insects do not have a brain. They have a ganglion which is nothing more than a collection of nerves. Most insects rely on several ganglions working together in order to function. Although it's not a brain, there is usually one major ganglion which is found under where you would think to find an esophagus, this is called the sub-esophageal-ganglion.

As for hearts and lungs I don't know. I wouldn't think they have hearts or lungs in the traditional sense. I do know they have spiracles on their abdomen which they breath with.

Hope this helps and doesn't confuse,

T

2006-07-04 20:43:58 · answer #2 · answered by bigtadjusting 1 · 0 0

They have an open circulatory system with a heart. The "blood" known as haemolymph bathes the internal organs in a body cavity known as a haemocoel. They have a 3 piece brain with each section controlling different parts of the animal eg the deutocerebrum deals with the antennae. They dont have lungs rather they possess a tracheal system which opens through valve like holes in their exoskeleton called spiracles to the external environment.

2006-07-04 11:16:34 · answer #3 · answered by kano7_1985 4 · 0 0

Hi there! let me tell you that insects also have hearts, lungs and not exactly blood in their bodies. Their body systems work differently, and they have other systems that helps them do many things, just like we do various activities! I encourage you to visit google.com and type your question there, I bet you'll find many charts, pictures and resources so you can learn much amore about insect's body and how they live!

2006-07-04 11:37:38 · answer #4 · answered by Peter 2 · 0 0

How Do Bodies Work

2017-02-22 05:16:41 · answer #5 · answered by ? 3 · 0 0

insects aren't real.

FACT.

it's all a drug induced conspiracy provided to you by your friendly neighbourhood Government.


FACT.

2006-07-05 02:03:43 · answer #6 · answered by Anonymous · 0 0

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