Do spiders and insects have lungs?

Question

do flys have lungs too?

Answer 1

Try stepping on some, trying to hear a pop. If so, they probably do. And you have just attempted genocide.

Answer 2

Circulation

Spiders have an open circulatory system; i.e., they do not have true blood, or veins to convey it. Rather, their bodies are filled with haemolymph, which is pumped through arteries by a heart into spaces called sinuses surrounding their internal organs. The haemolymph contains the hemocyanin, a respiratory protein similar in function to hemoglobin. Hemocyanin contains two copper atoms, tinting the haemolymph with a faint blue color.[6]

[edit] Respiration

Spiders have developed several different respiratory anatomies, based either on book lungs, a tracheal system, or both. Mygalomorph and Mesothelae spiders have two pairs of book lungs filled with haemolymph, where openings on the ventral surface of the abdomen allow air to enter and diffuse oxygen. This is also the case for some basal araneomorph spiders like the family Hypochilidae, but the remaining members of this group have just the anterior pair of book lungs intact while the posterior pair of breathing organs are partly or fully modified into tracheae, through which oxygen is diffused into the haemolymph or directly to the tissue and organs. This system has most likely evolved in small ancestors to help resist desiccation. The trachea were originally connected to the surroundings through a pair of spiracles, but in the majority of spiders this pair of spiracles has fused into a single one in the middle, and migrated posterior close to the spinnerets.

Among smaller araneomorph spiders we can find species who have evolved also the anterior pair of book lungs into trachea, or the remaining book lungs are simply reduced or missing, and in a very few the book lungs have developed deep channels, apparently signs of evolution into tracheae. Some very small spiders in moist and sheltered habitats don't have any breathing organs at all, as they are breathing directly through their body surface. In the tracheal system oxygen interchange is much more efficient, enabling cursorial hunting (hunting involving extended pursuit) and other advanced characteristics as having a smaller heart and the ability to live in drier habitats.

Insects breathe in a way that is very different from us. Instead of having a central place to gather oxygen (i.e. lungs) and a transport system (i.e. heart, blood) to deliver the oxygen to all of the cells of the body like us, insects have a system of fine branching tubes called a tracheal system that delivers the oxygen directly to each cell in the body. Imagine that you are an oxygen molecule in the atmosphere and you are about to be "breathed" into an insect.

You enter a tiny hole on the insect's thorax or abdomen called a spiracle. The spiracle is the opening of a long tube called a tracheae.

You proceed down the tracheae, which is a long, air-filled, branching tube.

You continue to move through branches until you reach a tiny, fluid-filled, dead end called a tracheole.

You dissolve in the fluid.

From the fluid, you diffuse or move across the wall of the tracheole into an insect cell such as a muscle cell.

The movement of air through the tracheal system of most insects relies solely on diffusion. Because most insects rely on diffusion, which occurs best over small distances, they cannot get very large. You will not see huge ants, like in the movie "Them," because enough air could not diffuse that far into their bodies to keep their cells alive. However, some larger insects can use their abdominal muscles to force air in and out of the tracheal system in a limited way.

So, with this system in mind, it would be difficult to strangle a bug. However, if the tracheal system fills with water, it takes much longer for air to diffuse through the system. Therefore, an insect can drown fairly easily.

Answer 3

i am pretty sure

Answer 4

yes, then how would they move if they don't?And flys do have lungs too.

Answer 5

YES!! How else are they supposed to breathe?

Answer 6

yes...

Answer 7

no i hate spiders?

Answer 8

Yes they do!!

go to : http://www.explorit.org/science/spider.h...

Answer 9

well, yes because they need to breathe

Answer 10

Spiders:  not like ours.

They have what are called "book lungs" which aren't really very lunglike at all.

Insects:  no.  Flies:  no.  Flies are insects, by the way.  Insects have a set of air-filled passages that run throughout the body.  Weird, huh?

Answer 11

yess everything alive needs oxygen and water to survive

and how could you breather with no lungs?

google anatomy of an insect and see for yoursefl

Answer 12

They dont have specific lung system how ever they do have  respitory system that allows them to breath. Spiders breath through there adomen