The #BS1006 practical this afternoon was on heart electrophysiology. This graph shows the ECG trace very clearly and the different components that make up the cardiac electrical cycle. There are even indications of where to begin and end the PQRST intervals for their measurements.
I had never really thought of our postures as being controlled through reflexes. The #BS1006 lecture today taught me a lot about the wonders of the human body! And the little hairs in the ear that let us know when we move our head - it's a well coordinated and complex nervous system.
The scientific report in #MB1031 is demanding a lot more thought and deduction than the previous draft we did. This time you really have to integrate knowledge from different areas of the taught modules and figure out what's going on. I've still got a lot of "why?" in my report.
In #BS1006 we learnt about the role of intracellular Ca2+ binding to calmodulin to create smooth muscle contractions. Below is a diagram of what happens during relaxation, and how Ca2+ is pumped back out of the cytoplasm of the cell.
A short #BS1006 practical, but I like experiments when you actually do them on yourself! We did so many calculations, now I just need to run through the why's and how's, and the significance of the calculated value we got for efficiency. Well pedalled, Joe!!
Looking over the #BS1006 lectures now, trying to figure out the role of Ca and how it is different for skeletal and cardiac muscle. At the moment it's a little difficult to appreciate, but perhaps by integrating with the material from previous lectures I can get a better overview.
Whoa, the earliest I've ever finished my #BS1011 assignment. Pretty ok this week, as we've come across chi-square test before in the genetics experiments. Puzzling out degrees of freedoms is more tricky.
Thinking over the mechanisms of muscle contractions after the #BS1006 lecture just now. Unbelievable how much work needs to be done to get my fingers typing at this keyboard: the many APs fired, their summation, and the many cross-bridge cycles being done. Simply unfathomable!
Just to clarify the #BS1011, for future experiments we need to tabulate data as a column, test for normal distribution, decide on null hypothesis, decide which t-test, and test variance, then calculate result of t-test? All this to look for similarity of two datasets!
Good idea having the tutor meetings yesterday for #MB1031. I feel more confident now writing a report than before when we'd never done one. I got to clarify what is vital and not necessary in the introduction, and how detailed each section should be, as well as what tables should be included in results.
Felt like the second #MB1004 tutorial whooshed right past my head. Anatomy? G protein cascades? Yikes, when you learn about a receptor there's a lot more than just neurones. You've got to know about muscle contractions, cardiac muscle, regulation etc.
Ohhhh, we've reached the last of the #MB1005 practicals. I'll miss them. I had the most fun during these sessions than for other subjects. It was interesting, and one of the best organised courses. Should I pick this next year?
We've had the last of our #BS1009 practicals. Now there's all those questions to answer about microorganisms! But, overall though, I have enjoyed the practicals. There was a lot to do, but I had never grown bacteria before and thought it amazing to identify such tiny organisms.
The #MB1004 session yesterday was very informative. Thank goodness we went over the questions. Apparently there's a lot of factors to consider in determining the opening and closing of ion channels. Nerve conduction isn't as simple as inflow and outflow of Na and K.