Describe the process of synaptic transmission. Begin your answer
by describing how the action potential occurs....
Describe the process of synaptic transmission. Begin your answer
by describing how the action potential occurs. End your answer by
describing binding of neurotransmitter to receptors.
Describe in detail how an action potential is generated in a
neuron. In your answer, identify all the phases and specify the
membrane potential and the events occurring at each phase.
In your own words
Describe the events that take place during an action potential.
Begin at the point where an EPSP reaches threshold in the trigger
zone. Include all ion channels (8), ion movements (8) and potential
changes (8) that take place during the various phases of the action
potential.
Describe how graded potentials are regulated and how they
regulate action potential firing. In your answer, specifically
identify where on a neuron each event occurs.
Explain “Excitation-Contraction Coupling” by describing the
chain of events that occurs from the Action Potential approaching
the terminal end of the motor neuron through the production of a
concentric contraction in the skeletal muscle
1. Describe the chemical and electrical properties of an action
potential. In your answer, describe the movement of Na+ ions and K+
ions across the cell membrane and the resulting changes in
electrical potential.
2. Compare and contrast EEG and MEG. Highlight their
similarities and differences in your answer.
Describe the series of events that occurs during an action
potential, including the ions involved, how each ion is moved, and
the change in membrane potentials.
• Explain the role of myelin in conduction of action
potentials.
• Explain how neurotransmitters transmit signals across
synapses.
• Distinguish between sensation and perception.
• Describe the function of sensory receptors and list 5 types.
•
13. Describe the basic sequence of events that occurs as an
action potential arrives at the neuromuscular junction and is
transmitted to the muscle cell and leads to a contraction. Explain
at the end how relaxation of the muscle takes place (include what
happens at the neuromuscular junction and in the muscle fiber. You
may use some words multiple times. Fill in the blanks with a
complete word or words (no abbreviations) of each step.
1. An action potential arrives...
Describe the events that take place during an action potential.
Begin at the point where an EPSP reaches threshold in the trigger
zone. Include all ion channels (8), ion movements (8) and potential
changes (8) that take place during the various phases of the action
potential.
3. Compare and contrast an action potential and a
local post-synaptic potential in terms of where they occur on a
neuron, the change in charge, how they propagate through a neuron.
(3)
6. What is an EPSP and IPSP? Provide a definition,
not just spelling out the acronym. (2) Provide a specific example
of how each can be generated in a neuron. (4)
8. Imagine humans have a single hypothetical neuron
that controls the decision to get out of bed....