Question

The signals in nervous system are transmitted in the form of

• A. Electrical
• B. Chemical
• C. Magnetic
• D. Mechanical

Hint:

Remember:
• Within a neuron $\rightarrow$ Electrical impulse.
• Across a synapse $\rightarrow$ Chemical neurotransmitters.

Answer 1

The Correct Option is A

Concept: Nerve impulses travel through neurons as electrical signals. At the junction between two neurons (synapse), the signal is passed using chemical neurotransmitters.

Step 1: Understand nerve impulse transmission.
Within a neuron, \[ \boxed{\text{Nerve impulses are electrical in nature}.} \]

Step 2: Analyse the options.

• Electrical -- Correct.
• Chemical -- Used only across synapses.
• Magnetic -- Not involved.
• Mechanical -- Not involved.

Step 3: Final conclusion.
Hence, the signals in the nervous system are transmitted in the form of \[ \boxed{\text{Electrical signals}.} \]