A neural impulse is initiated when neuron’s charge momentarily becomes less negative or even positive. This event is called:

Related Mcqs:

1. The neuron conducts the impulse in the form of nerve impulse during:

   A. Threshold potential
   B. Active membrane potential
   C. Resting membrane potential
   D. All of the above

2. Under normal conditions a nerve impulse is initiated by an appropriate stimulus called:

   A. Threshold stimulus
   B. Active membrane potential
   C. Resting membrane potential
   D. All of the above

3. The cytoplasmic process arising from the cell body of neuron that carries impulse towards cell body is called a:

   A. Axon
   B. Dendrite
   C. Nissl’s granule
   D. Myelin sheath

4. The fact that, during neural transmission, an impulse is sent to the end of the axon without fading or weakening is known as ___________?

   A. stimulus constancy
   B. absolute threshold retention
   C. nondecremental property
   D. all-or-none property

5. A physical stimulus is converted into a neural impulse by a process ____________?

   A. transposition
   B. transduction
   C. transition
   D. transference

6. The junction where the axon of a sending neuron communicates with a receiving neuron is called the___________?

   A. Reuptake site
   B. Receptor site
   C. Synapse
   D. Axon terminal
   E. None of these

7. The junction where the axon of a sending neuron communicates with a receiving neuron is called the ______________?

   A. reuptake site
   B. receptor site
   C. synapse
   D. axon terminal

8. A membrane potential of_________volts exits when a neuron is not conducting a nerve impulse:

   A. 0.05
   B. 0.07
   C. 0.05 to 0.07
   D. 1

9. The structures, which respond when they stimulated by impulse coming via motor neuron, is:

   A. Receptors
   B. Effectors
   C. Schwann cells
   D. both a & b

10. A brief electrical charge that travels down the axon of neuron is called the:

    A. synapse
    B. myelin sheath
    C. refractory period
    D. action potential