Question

How can action potentials be expedited?

How can action potentials be expedited?

Homework Answers

Answer #1

ANSWER: Action potential occurs when a membrane potential of a specific cell location rapidly rises and falls, this depolarisation causes adajacent location similarly to depolarise. It is generated in the body of neuron and is propagated through the axon from one neuron to another. The action potential is fastly conducted in the mylineated axon by saltatory conduction. In saltatory conduction the action potential junls from one node of Ranvier to another node of Ranvier. The depolarisation is due to opening of voltage gated sodium channel and the influx of sodium ions. Then slowly the potassium channel opens anf efflux of ions haplens resulting in Hyperpolarisation of the neuron.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
5.(2) Compare and contrast graded potentials and action potentials Graded potential Action potential Distance traveled (short...
5.(2) Compare and contrast graded potentials and action potentials Graded potential Action potential Distance traveled (short or long) What causes it Where can it occur In what direction does the signal travel By what process does the signal travel Depolarizing or hyperpolarizing How large a change occurs Speed of change in membrane potential
During saltatory action potential propagation: A. action potentials move in all directions along an axon B....
During saltatory action potential propagation: A. action potentials move in all directions along an axon B. action potentials occur at successive nodes along the length of the stimulated axon C. local currents depolarize adjacent areas of membrane so that action potentials continue to form along the membrane D. action potentials produce a local current that is strong enough to spread along the length of the axon E. local potentials produce a continuous outward flow of potassium ions
Action potentials are self-propagating – explain what is meant by this term in terms of action...
Action potentials are self-propagating – explain what is meant by this term in terms of action potential conduction down the axon? This question has to do with Animal Physiology.
Explain the term “orthodromic propagation” in regards to action potentials
Explain the term “orthodromic propagation” in regards to action potentials
When you consciously decide to move a finger, where do action potentials specifically arise and how...
When you consciously decide to move a finger, where do action potentials specifically arise and how are they transmitted to the brainstem and then the spinal cord.
What ions are involved in the action potentials in neurons? Are they entering or leaving the...
What ions are involved in the action potentials in neurons? Are they entering or leaving the cell? What is their purpose?
Why do action potentials NOT get stronger as they travel along an axon?
Why do action potentials NOT get stronger as they travel along an axon?
Astrocytes Select one: a. cannot divide b. can generate action potentials c. line brain cavities containing...
Astrocytes Select one: a. cannot divide b. can generate action potentials c. line brain cavities containing CSF d. form the neural scar e. supply glucose to brain cells Clear my choice
A larger stimulus is associated with (select all that apply): A) Action potentials with a larger...
A larger stimulus is associated with (select all that apply): A) Action potentials with a larger amplitude B) Increased action potential frequency C) A larger generator potential D) Decreased threshold
Astrocytes Select one: O a. cannot divide O b. can generate action potentials O c. line...
Astrocytes Select one: O a. cannot divide O b. can generate action potentials O c. line brain cavities containing CSF d. form the neural scar e. supply glucose to brain cells Clear my choice