Question

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

• A. Nerve image travels from dendritic end towards axonal end
• B. At the dendritic end electrical impulses bring about the release of some chemicals which generate an electrical impulse at the axonal end of another neuron
• C. The chemicals released from the axonal end of one neuron cross the synapse and generate a similar electrical impulse in a dendrite of another neuron
• D. A neuron transmits electrical impulses not only to another neuron but also to muscle and gland cells

Answer 1

The correct option is B At the dendritic end electrical impulses bring about the release of some chemicals which generate an electrical impulse at the axonal end of another neuron

The chemical signals, known as the neurotransmitters, are generated at the axonal end of one neuron, which are received as electrical signals by the dendritic end of the another neuron.