A&P II Club! Come on in!

Nursing Students Pre-Nursing

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Who all is taking A&P 2 ? Is there going to be a club?:idea:

:yeahthat: She deserves a medal!

HA HA! Not hardly! Maybe my mom does, though. SHe's given me some pretty good tips and a great foundation for being able to handle heavy loads.

I'm studying for my lymphatics and immunity test now. Does anyone have a decent explanation of haptans and chemotaxis?

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I just remember that haptiens are molecules that are too small and cant illicit the allergic reaction without some other larger molecule to assist it. The way I understand Chemotaxis is the process of destroying foreign antigens by rupturing their membranes to render them harmless. Anyone else have a better explanation?

HA HA! Not hardly! Maybe my mom does, though. SHe's given me some pretty good tips and a great foundation for being able to handle heavy loads.

I'm studying for my lymphatics and immunity test now. Does anyone have a decent explanation of haptans and chemotaxis?

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Thank you! I have that haptans are too small to cause a response unless bound to a host protein. Which is pretty much how you explained it, but he also has something about poison ivy and penicillin. Would those be examples of haptans?

In Chemotaxis, he mentions concentration gradient and I can't remembet exact relationship.

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Well, I must say that my explanation was kind of sloppy. I have been studying all day for the same exam, but ours is over 3 chapters. That one, and the digestive system plus the respiratory system. I wish we would have a test after every chapter like you do. There is so much information even in one chapter to learn. I think everyone would do better if it were one chapter at a time.

What I remember about chemotaxis is it is a part of activating the complement process and what I meant to say was that it ruptured the membrane which renders them harmless. :imbar Am I totally lost??? :uhoh3: My explanation is what I read from my chapter. I went back and looked again to make sure I was telling it right. I didnt read anything in my book about concentration gradient, but I'm not saying your instructor is wrong. I am just saying I didnt see anything about that. My test is tomorrow, so I hope I am not totally lost on the subject. Someone help!!!!

Thank you! I have that haptans are too small to cause a response unless bound to a host protein. Which is pretty much how you explained it, but he also has something about poison ivy and penicillin. Would those be examples of haptans?

In Chemotaxis, he mentions concentration gradient and I can't remembet exact relationship.

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Ok, from what I can gather (without all the scientific jargon, lol)...

Because of an existing concentration gradient, chemical agents can draw leukocytes to the site of the damage to fight infections and clean up afterwards.

Does that make sense? LOL

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Yes, it does. Thank you. It makes more sense now. My brain is nearly dead at this moment. I hope I get a good night sleep tonight. I probably should have gone back and read the previous paragraphs. Wish me luck tomorrow. I will try those new study tips on the next chapters. Maybe I will understand them all better.

Ok, from what I can gather (without all the scientific jargon, lol)...

Because of an existing concentration gradient, chemical agents can draw leukocytes to the site of the damage to fight infections and clean up afterwards.

Does that make sense? LOL

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YAY! LOL Well, good luck to you tomorrow. I am meeting with a group of girls from class tonight at Barnes and Nobles. I better get to filling in the rest of this study guide, lol. Let me know how they work for you!!!

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HA HA! Not hardly! Maybe my mom does, though. SHe's given me some pretty good tips *** a great foundation for being able to h***le heavy loads.

I'm studying for my lymphatics *** immunity test now. Does anyone have a decent explanation of haptans *** chemotaxis?

Chemotaxis means that phagocytes may be attracted or repelled by chemicals in surrounding fluids...this guides the White Blood cells to invading pathogens or damaged tissues *** other active WBC.

Haptens are small, partial antigens *** are useless alone, they need to combine with a protein in our body to become antigenic.

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I just remember that haptiens are molecules that are too small and cant illicit the allergic reaction without some other larger molecule to assist it. The way I understand Chemotaxis is the process of destroying foreign antigens by rupturing their membranes to render them harmless. Anyone else have a better explanation?

What you are referring to is Cytotoxic cells (CD8's) which secret preforin into enemie cells which ultimately kills those cells.

Chemotaxis is when chemicals are released during an inflammatory response which call in the WBCells to do their job. Think of it this way....the WBC are blind and are called and guided by the chemicals to their target, the pathogens.

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Chemotaxis means that phagocytes may be attracted or repelled by chemicals in surrounding fluids...this guides the White Blood cells to invading pathogens or damaged tissues *** other active WBC.

Haptens are small, partial antigens *** are useless alone, they need to combine with a protein in our body to become antigenic.

Here is the Poison Ivy story....the oil in Poison Ivy is the hapten, when it binds with our proteins we will get an allegic response. (The oil alone doesn't do anything only when it binds with our protein)...same thing happens with poison oak and in Contact Dermatitis.

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Thank you so much for clarifying that!!!! I was hoping you would see this before my test because I remember reading that your instructor went into great detail on this and ours really didn't. Again, you rock!!!! LOL

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Let me ask you, because the section that I was reading from mentioned chemotaxis in the same section as initiating complement. I really wasnt refering to cytotoxic cells at all. I know those are T-cells. I really do not think I am learning near what I did from A&P 1 and I know it is the different methods the instructor uses, and I cannot pay attention to what he is saying while I am copying those stupid outlines. :angryfire :angryfire :angryfire Others in my class are saying the same thing. What is your understanding of the complement issue. You seem to be learning a lot more than I am.

Thanks.

What you are referring to is Cytotoxic cells (CD8's) which secret preforin into enemie cells which ultimately kills those cells.

Chemotaxis is when chemicals are released during an inflammatory response which call in the WBCells to do their job. Think of it this way....the WBC are blind and are called and guided by the chemicals to their target, the pathogens.

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