Question

Which of the following statements about nerve impulse transmission is incorrect?

• A. Nerve impulse travels from dendrites end to axonal end.
• B. The chemical released from axonal end of one neuron crosses the synapse and generates impulse in dendrite of other neuron
• C. At dendrite end, electrical impulses bring about the release of neurotransmitters which generate an electric impulse at the axonal end of another neuron.
• D. A neuron transmits electrical impulses not only to another neuron but also to muscle and gland cells.

Answer 1

Answer: (C)

At dendrite end, electrical impulses bring about the release of neurotransmitters which generate an electric impulse at the axonal end of another neuron.

The nerve impulses are generated at the sensory receptor and are carried towards the CNS through the sensory neuron. The nerve impulse is transmitted through the axon of one neuron to the dendrite of the other neuron. At the axonic end, there are telodendrons which release the neurotransmitters which flow through the synapse to the dendrite of the other neuron.

Thus, the correct answer is option C.