SCIENCE
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a response to a stimulus
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information being spoken
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information that travels as an electrical message
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a signal from the enviorment
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Detailed explanation-1: -Neuron is the structural and functional unit of nervous system. Information in a neuron travels in the form of electrial impulses. Dendrite in a neuron acquires information. This information travels in the form of electrical impulse through the axon to reach the nerve ending.
Detailed explanation-2: -Axon is the part of the neuron through which information travels as an electric impulse. It helps in transmitting impulses away from the cell body.
Detailed explanation-3: -Electrical impulse is an electrical signal that travels along the axon. Limitations of electrical impulses are as follows: 1) The electrical impulses reach only the cells that are connected to the nervous cells and not all the cells. 2) They would not provide a wide ranging effect.
Detailed explanation-4: -A nerve impulse begins when a neuron receives a chemical stimulus. The nerve impulse travels down the axon membrane as an electrical action potential to the axon terminal. The axon terminal releases neurotransmitters that ca rry the nerve impulse to the next cell.
Detailed explanation-5: -Final answer: The electrical impulse travels in a neuron from: dendrite → axon → axonal end → cell body.