Basically-YOU can ignore this part.
P wave is the depolarization of the Atria, or Atrial Systole (contraction)
QRS complex firing of AV nodes to depolarize the ventricles or Ventricular Systole (contraction)
R Ventricular Contraction Peak
S repolarization of the Atria - With S-T segment plateau in Myocardium Action Potential which I believe has to do with a latent period in the Pacemaker Potential which we need so our heart doesn't stay in tetany (contraction)
There is other stuff but that's the gist of it.
START HERE
Then we had to take blood pressure readings. I know for nurses it is day one in nursing school but for someone who has never done it before it was a little stressful. Especially since they didn't show us how to perform it. I'm also not a nursing student and we had to read step by step instructions. I really have a hard time comprehending and concentrating lately.
And then, there are the nerves in the brain which make me question all my beliefs about life.
#BioCored #SomehowImissedsomething #magicandactionpotentials
I really hate physiology. I went to the lab to find help. We had been studying the effects of toxins on the heart rate and strength of contractions. I was filling out a report and was stuck identifying what the drugs were specifically inhibiting.
"Uhm, the heart..."
The TA told me to think smaller...
"The cells?"
The TA told me to think like a doctor. "Think in the sarcolemma, what would this unknown toxin be inhibiting?"
The ryanodine channels? They aren't opening, so calcium is not being released. So... there is no action potential?"
In case you haven't figured it out yet. Life is Action Potentials.
Oh and my job. Let me just reiterate...
