--%>
Assignment Help - homework help

Excitation threshold of neuron

What is excitation threshold of the neuron? How does this threshold relate to “all-or-nothing” rule of neural transmission?

E

Expert

Verified

Excitation threshold of the neuron is depolarization level which should be caused by the stimulus to be transmitted as a neural impulse. This value is about –50 mV.

The transmission of neural impulse along neuronal membrane obeys the all-or-nothing rule: or it takes place with maximum intensity or nothing takes place.

Always and only when the excitation threshold is reached depolarization continues and membrane reaches its maximum probable positive polarization, about +35 mV. If excitation threshold is not reached nothing takes place.

   Related Questions in Biology

  • Q : Why do diabetic patients undergo

    Why do diabetic patients frequently undergo dietary sugar limitation? Describe the major complications of diabetes mellitus?

    		•
  • Q : Is embryonic growth in birds direct or

    Is embryonic growth in birds direct or indirect? Answer: The embryonic growth is direct, there is no larval phase.

    		•
  • Q : How consecutive protein production take

    How many of similar proteins are made up at similar time by each ribosome in the translation of one mRNA molecule? How consecutive protein productions take place in translation?

    		•
  • Q : Sodium-potassium pump-cell membrane How

    How does sodium-potassium pump which is present in the cell membrane work? And also write down the significance of this protein for cell.

    		•
  • Q : Define Self-Directed Work Teams

    Self-Directed Work Teams: The self-directed work team (abbreviated as SDWT) is a group of people, usually employees in a company, who unite various skills and talents to work devoid of the customary managerial supervision toward a common purpose or go

    		•
  • Q : Constitutional unit of the proteins

    Describe briefly the constitutional unit of the proteins?

    		•
  • Q : Platyhelminthes-beings-morphology-kind

    How are platyhelminthes characterized according to illustrations of representing beings, fundamental morphology, kind of symmetry, germ layers and coelom, excretory system, respiratory system, digestive system, circulatory system, nervous system and k

    		•
  • Q : What is Meningitis What is Meningitis

    What is Meningitis and what are their symptoms?

    		•
  • Q : What is Competitor Intelligence

    Competitor Intelligence: Intelligence about the competitors should be well documented to be component of product strategy. The way the competitors position themselves, leads to a change in our own strategy. Competition in the market can be direct, ind

    		•
  • Q : Plan of Implementation-Six Sigma Plan

    Plan of Implementation: Increasingly operations have become more complex all over the world. This is a result of more use of technology all over the world. With this increased use of technology in operations, the records of work are more important. Th

    		•