In words and on a graph, diagram the fast response action
potential of a cardiomyocyte. Indicate...
In words and on a graph, diagram the fast response action
potential of a cardiomyocyte. Indicate which voltage-gated channels
are open or closed at each respective phase (0-4) and the direction
the ions are moving.
Draw and label the action potential. Indicate steps 1-7 at each
point of the Action Potential. Then tell me what happens at each
point. Tell me why it is important to know the steps of the Action
Potential and how it works, and what it does in the body.
Draw and label the action potential. Indicate steps 1-7 at each
point of the Action Potential. Then tell me what happens at each
point. Tell me why it is important to know the steps of the Action
Potential and how it works, and what it does in the body.
Draw the action potential that would be occurring at the SA node
in humans. Indicate which ions are permeable, and direction of
movement, during each part of action potential. Which channel is
responsible for the unstable membrane potential?
Draw a diagram that shows an EPSP causing an action potential to
fire. The EPSP should be caused by a chemically gated channel.
Include details on the channels associated with the action
potential, and draw their configuration at each stage of the action
potential.
ACTION POTENTIAL (AP) ON A NEURON
1. For each of the following channels, indicate what
specifically opens it, what specifically closes it, and what goes
through (& in what direction) when it is open.
•Voltage-gated Na+ channel
•Voltage-gated K+ channel
2. What are leak channels? What purpose do they serve in
neurons?
Part 1: Create a hand drawn diagram of action potential in a
neuron leading to synaptic vesicle release at the neuromuscular
junction, and include the following terms: Action Potential,
Depolarization, Repolarization, Sodium, Potassium, Voltage-Gated
Sodium Channel, Threshold Refractory Period, Voltage-gated
Potassium Channel, Hyperpolarization, Resting Membrane Potential,
Sodium/Potassium Pump, Vesicle, Acetylcholine, Calcium
Label a voltage-versus-time diagram of an action potential with the
ions involved in each phase, the direction of their movement across
the membrane, and the terms depolarize, repolarize, and
hyperpolarize.
ACTION POTENTIAL (AP) ON A NEURON
1. For
each of the following channels, indicate what specifically opens
it, what specifically closes it, and what goes through (& in
what direction) when it is open.
Voltage-gated
Na+ channel
Voltage-gated
K+ channel
2. What
are leak channels? What purpose do they serve in neurons?
PARAGRAPH ANALOGY OF ACTION POTENTIAL
In a single paragraph discuss the process of an action
potential. Explain it in a way that you would tell an
eight year old - using an analogy. I would like to
see you use an analogy and the more creative the better!
Note: You CANNOT use the domino effect or firing a gun as the
analogy.
You must include four (4) of the following terms in your
analogy: all-or-nothing response, axon, resting state, soma...