Ascaris suum

Well, it’s no big deal, but thought I would show you since it’s done.
Female:

http://web.axelero.hu/ceze1/Ascaris2.jpg

Male:

http://web.axelero.hu/ceze1/Ascarismale.jpg

Came out quite nicely. Where are these going to be used?

Well, I’m working on my second masters degree in biology (I mean the first is not in biology :slight_smile: ), and we have to make illustrations on creatures we do autopsy on, and I’ve decided to give it a shot in blender. I think it looks way better than if I tried to draw it by hand. I hope they will accept it too.

Nice, but gross subject:
http://www.biosci.ohio-state.edu/~parasite/ascaris.html

Sure, but they are just as well a part of life as anything else, and they are also great models of this step in complexity. Also, important from an agricultural point of view, since A. suum is the pig roundworm, and it can be quite damaging.
(My first degree is in agricultural/environmental engineering)
Also, that’s what I like in 3d, you can create nice looking images of even gross subjects :slight_smile:

Erufailon:
Yes, I see the need for a good model (which must be a pain to model, btw). So I appreciate the work (and you may even release your model w/ a copyleft for future generations…

Question for the specialist (to be if not yet): how prevelant are they in industrialized country? Can you catch them if you don’t wash fruits & vegies that may have been soiled by feces of animals carrying the parasite? The cycle is so complex it wasn’t quite clear to me… If you have time. Thx.

Arnaud

Yes, you can, but A. lumbricoides is the specialized human parasite, and in advanced civilizations it’s not that common to find it’s eggs on the ground, tho it can happen, but people don’t defecate on the streets and other outside places all that often, so the chance is smaller.
(The egg produced by the adult female is not infectious until it has spent 30 days in an aerobic environment -usualy the ground-, in which it grows to the L3 form.)
However A. suum and other species are also able to infect humans, but they are unable to grow into an adult form inside the human body. A. suum reaches the lungs in an L3 form, and dies there, causing local pneumonia, which is mostly unnoticable, except if there are lots of larvae dying, in which case it can be fatal, but that’s very rare (and it can happen in case of A. lumbricoides infection as well). Other species, like the one specialized to dogs usualy migrate to other tissues inside the body, and remain there for a while then die, once again causing local inflamation, which is mostly not even noticable.
The problem with worm infections is that they are mostly asymptomatic (in adults that is), so there are no sings of infection, and as you don’t know about them, you can spread them.
So, it is important to wash everything you eat, and wash your hands before eating as well, especially as there are other human parasite worms, which are just as infectious (edit: for example approx. 40% of children have pinworms in technologicaly advanced countries).

BTW, I meant roundworms are great models (not in a 3d model sense) for the step between less complex and more complex organisms.

Sorry, I’m not a native English speaker, so if you don’t understand something, ask. I can only hope I have used the right expressions.

Perhaps a bit off-topic, but I should congradulate you on your English, since it’s not your primary language. It’s quite fantastic.

Besides that, this is fairly neat. I never thought of Blender as a biology tool.

Agree on each point. Also, sorry: I my question was off…

Erufailon: thanks, you made perfect sense.

Arnaud

Erufalion -

I too work on roundworms (C. elegans, your average geneticist)

but this is quite a nice model. Maybe one day I’ll get around to making my illustrated elegans.

It could be neat, though I don’t really know how to simulate something so transparent.

nice job erufailon. I’ve thought of using Blender to do medical, technical illustration and scientific illustration and your picture shows that not only can it be done but done well. Thanks
Paradox

Thanx guys.

mrmunkily,

Do you know anything about Ditylenchus dipsacii and D. destructor? (Just because they are also soil nematodes). I have heard a theory that the D. destructor evolved from D. dipsaci when potato was introduced to Europe, as D. destructor is not known is the US. As it was told as a theory, I’m looking for some info to confirm that, but so far no luck, so I’d be quite happy if you would happen to know something about this :slight_smile:

O, about the transparency:
The worm itself is not transparent, but I had to show the internal organs, so I had 2 options:
1, I make it transparent
2, I model the results of the autopsy. (The skin cut up, peeled to the side and fixed with pins)
I went with the first one, so I would have an intact body. I was lucky, because this particular worm has 1 cell on each side which is almost as long as the worm itself (that’s a very large cell), which functions as the secretion organ. That cell is a bit different in color (not as much as here), and I have decided to make it less transparent than the rest, so it gave me a nice outline. It was luck really, but turned out quite well :slight_smile:

Erufailon, I agree with the others… this is really nice work. Have you thot about, or do have need of, an animation of them? Simply a slow 360deg rotation to show how things are arranged (no movement of the worms necessarily) would be interesting. For the text and leaders, you could actually model them and have each track the camera as it travels around your model. It could come out cool… but I don’t know if you’d have a way to use it, other than to show it to us and let us applaud your prowess!

ah, Sorry that I don’t know very much about nematodes, I’m studying molecules related to early embryogensis, and know pretty little about the organisms themselves.

These did come out really well. Ductus ejaculatorius sounds like a spell cast by Harry Potter :stuck_out_tongue: