In this experiment we will work with a nerve The action potential we will see on this experiment reflects the cumulative action potentials of all the neurons in the nerve, called a compound nerve action potential.
Get Full Essay Get access to this section to get all help you need with your essay and educational issues. What was your observed threshold voltage?
Our observed threshold voltage at 3 V at a single stimulus. How does this tracing compare to the one that was generated at threshold voltage?
When we increased the threshold by 0. What reasons can you give for your answer?
There needed to be a more significant difference for there to be a big enough change in the threshold voltage. At what voltage did you no longer observe an increase in the peak of the action potential trace. We no longer observed an increase in peak of action potential trace at the 3.
What did you observe when the glass rod contacted the nerve? When the glass rod contacted the nerve there was an instant deflection of the line. There was action potential on the osciloscope.
How does this tracing compare with the other tracings you have generated? The tracing was the exact same outcome as the other tracings except there was no added voltage only the addition of the glass rod. What did you observe when the heated glass rod contacted the nerve?
There was an instant deflection of the line similar to the line caused by the non-heated glass rod. How does this trace compare to the trace that we generated with the unheated glass rod? What did you observe when you added sodium chloride and hydrochloric acid solutions to the nerve? Once sodium chloride and hydrochloric acid solutions were added to the nerve there was a deflection of the line and caused action potential.
Summarize your experimental results: What kinds of stimuli can elicit an action potential? Any stimuli that can reach above the 3 Voltage can elicit an action potential. What are the effects of ether on the nerve? The effects of the ether on the nerve is that it causes the nerve to have no action potential.
How long did it take for the nerve to return to normal? It took the nerve 6 minutes to return back to normal. What effect did adding curare have on the action potential?
The effect of adding curare was that it created action potential to the nerve. The effect of curare is paralyzing the action potential of the nerve. It interferes with the neuromuscular junction, it interferes with the Acetyl Choline and it depolarizes it. What do you think would be the overall effect of curare on the organism The overrall effect of the curare on the organism is that it prevents the flow neuron impulses from neuron to neuron.Lab Report- Neurophysiology of Nerve Impulses Essay Words Mar 22nd, 8 Pages Introduction Neurons (also known as neurons, nerve cells and nerve fibers) are electrically excitable and the most important cells in the nervous system that functions to process and transmit information.
Exercise 3: Neurophysiology of Nerve Impulses Worksheet. Exercise 3: Neurophysiology of Nerve Impulses Worksheet Assignment Due: Week 4 Eliciting a Nerve Impulse Activity 1: Electrical Stimulation 1.
Do you see any kind of response on the oscilloscope screen? No 2. What was the threshold voltage, or the voltage at which you first saw an action potential? Exercise 3: Neurophysiology of Nerve Impulses: Activity 2: Receptor Potential Lab Report Pre-lab Quiz Results You scored % by answering 4 out of 4 questions correctly.
1. Assuming that the resting potential of a sensory neuron is mV, which of the following represents a depolarization?%(10). -The period immediately following the firing of a nerve fiber when it cannot be stimulated no matter how great a stimulus is applied 2. What happens to voltage gated Na+ .
Neurophysiology Lab Report Essay Sample. Activity 1: effect of curare on the organism The overrall effect of the curare on the organism is that it prevents the flow neuron impulses from neuron to neuron. Activity 7: The rat nerve 2 had the fastest conduction velocity. Home» Exercise 3: Neurophysiology of Nerve Impulses Worksheet. Exercise 3: Neurophysiology of Nerve Impulses Worksheet There's a specialist from your university waiting to help you with that essay topic for only $/page Tell us what you need to have done now! order now. Related Essay Paragraph: Skeletal Muscle Lab ;. The Pacinian corpuscle and the free nerve ending are not likely to have this receptor protein because they did not respond to chemical stimuli in activity 2. initiativeblog.com .
Exercise 3 Neurophysiology of Nerve Impulses Activity 1: The Resting Membrane Potential 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of .
Lab Report- Neurophysiology of Nerve Impulses Essay. Words Feb 25th, 7 Pages. Show More.
Physics Lab Report Impulse Essay. Impulse and Momentum Lab Part I: As the first lab of the Physics 2 curriculum, our class completed a lab experiment that introduced us students to a new concept that would be a foundation to the future topics.