Which one of the following statements regarding nerve activity is true?

  • A
    The synaptic cleft does not prevent direct propagation of action potential from the presynaptic neuron to the postsynaptic cell.
  • B
    Information across the synaptic cleft is transmitted by means of a chemical neurotransmitter in small vesicles.
  • C
    Combination of a neurotransmitter with a receptor site changes membrane potential without changing membrane permeability.
  • D
    In tetanus,the excitatory impulses to muscles are inhibited,leading to lockjaw.

Explore More

Similar Questions

The junction between an axon and a dendrite is known as:

The joint between the axon of a neuron and the dendrite of the next is called:

The brief delay in the transmission of an impulse through a synapse is called .........

Select the incorrect option for electrical synapses.

The venom of a cobra affects the $........$ system.

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo