Fundamentals of the Nervous System- Homework Name Class 1. Explain a graded pote

Question

Fundamentals of the Nervous System- Homework Name Class 1. Explain a graded potential 2. Use slide 3 and terms like Afferent and Efferent in your own scenario (I used water and thirst) to correctly explain functions of nervous system and how it works 3. What are the possible 4 phases of the generation of an action potential. Explain occur? each. Which one doesn't always 4. What are the 2 types of receptors for neurotransmitters and what do they respond to? 5. Draw a picture of the plasma membrane representing the charge of the inside and outside of an axon membrane

Explanation / Answer

1. The changes in membrane potential that vary in size, as opposed to being all-or-none are called Graded Potential. The summation of the individual actions of ligand-gated ion channel proteins arises the potential and reduces over the time and space. They do not involve in voltage-gated sodium and potassium channels. These impulses may be excitatory or inhibitory. Presynaptic neuron firing and release of the neurotransmitter takes place in skeletal, smooth, or cardiac muscle in response to nerve input causes the development of membrane potential at postsynaptic dendrites. Graded potential magnitude is determined by the strength of the stimulus applied.

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