L5 graded potential post - Neurons Graded Potentials...

Info icon This preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Neurons: Graded Potentials Analyze factors that affect the magnitude and direction (depolarizing or hyperpolarizing) of a graded potential stimulated by an incoming. Analyze factors that affect the relative magnitude of a graded potential as it travels from the signal reception site to the axon hillock. Predict how changes in capacitance and resistance will affect the conduction within an axon Analyze how the cable properties of an axon determine the signal conduction speed of neurons Explain why membrane capacitance affects the generation of new currents but not signal conduction along the axon Calculate the time constant for a change in membrane potential given the membrane resistance and membrane capacitance Tuesday, January 20, 2015
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Graded potentials Draw the corresponding membrane potential changes in response to the stimuli shown above (in red). Assume the resting membrane potential is -60 mV (shown in blue). Tuesday, January 20, 2015
Image of page 2
Determination of neural activity Tuesday, January 20, 2015
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Soma Channels are different @ different spots on the neuron Ligand-gated channels voltage-gated channels Of course, there are exceptions, but this is a decent rule of thumb Tuesday, January 20, 2015
Image of page 4
Effect on membrane potential depends on type of ion channels opening Changes in membrane potential act as a signal.
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern