Physiolog

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Anyone taking physiology by itself? My school doesn't offer A&P together.

Himalayangirl-

I am using the same textbook! We are using a lab manual that one of our professors wrote though. We have gone over Chapters 1, 2, 3, and 4 to this point. Most of it is chem review but it's amazing how much of that chem I forgot! Or blocked...I don't like chem.

Does anyone have any ideas on how we would like to "study" together? Should we just toss out questions to each other as they come up?

Deb

i think that would be the best way for us to study deb and also if we talk about a certain subject that we are having trouble on then it could also help us to remember it, so its open to any other idea if you guys have one if not we should begin.:wink2:

so i have a question. In a hypertonic solution red blood cells are said to crenate. why does crenation occur?

I'm so glad that I found this group as I'm also in a separate Physio class this semester. We're using Silverthorn 4th ed and our lab manual was created by another teacher in the department. Good luck to everyone!

Oh and Crenation occurs because in a hypertonic solution there is more solute dissolved in the fluid outside the cell than inside the cell so water moves out of the cell in order to reach a balance.

Here's an interesting site here that just happened to be at the top of the list when I googled hypertonic solution, but it has an animation that kinda shows what happens: http://www.tvdsb.on.ca/WESTMIN/science/sbi3a1/cells/Osmosis.htm

I hope that helps! :D

-stine

well if anybody else has anymore study questions feel free to ask and stine what are you guys learning in you class this week and everybody else in the study group. we are on DNA, RNA, and protein synthesis.

... stine what are you guys learning in you class this week and everybody else in the study group. we are on DNA, RNA, and protein synthesis.

This week we're covering DNA replication and protein synthesis so it looks like we're on a similar schedule.

thats great stinebean we can ask each other study questions to get us ready for tests:typing

Can someone help me answer this question?

What is the difference between a graph that shows the effect of breathing rate on blood oxygen levels and a graph that shows the effect of blood oxygen levels on breathing rate? Explain what the independent and dependent variables are for each graph.

I'm not sure what I have is right so I want to see what you guys think.

Here's my take on it. Does this sound right to everybody else?

Graph: Effect of breathing rate on blood O2 levels

independent variable: breathing rate

dependent variable: blood O2 levels

Graph: Effect of blood O2 levels on breathing rate

independent variable: blood O2 levels

dependent variable: breathing rate

The thing that varies independently is the thing that then affects the value of the dependent variable.

Yea that is basically what I got too. Thanks!

Well done, Ste`be.

If it might help some, you can think of each in terms of Negative Feedback.

As one moves away from the Set Point, it triggers an Effector action (rate or concentration change) from the other.

~Blue

This wasn't my question but I just wanted to say "thanks" for these answers! It definitely helps to think of it in the negative feedback way.

What a smart group! :yeah:

Debi

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