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In a synapse, chemical signal is transmi...

In a synapse, chemical signal is transmitted from

A

dendritic end of one neuron to axonal end of another neuron

B

axon to cell body of the same neuron

C

cell body to axonal end of the same neuron

D

axonal end of one neuron to dendritic end of another neuron

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Neurons**: Neurons are the basic units of the nervous system that transmit electrical signals. They consist of three main parts: dendrites, cell body, and axon. 2. **Signal Transmission**: The transmission of signals in a neuron begins when an electrical impulse is received by the dendrites. This impulse then travels through the cell body and down the axon. 3. **Synapse Definition**: The synapse is the gap between the axon terminal of one neuron and the dendrites of the next neuron. It is where the transmission of signals between neurons occurs. 4. **Chemical Signal Transmission**: At the synapse, the electrical signal is converted into a chemical signal. This chemical signal is transmitted from the axonal end of one neuron to the dendrites of the next neuron. 5. **Identifying the Correct Answer**: The question asks where the chemical signal is transmitted from in a synapse. The correct answer is that the chemical signal is transmitted from the axonal end of one neuron to the dendrites of another neuron. 6. **Conclusion**: Therefore, the correct option is D: from the axonal end of one neuron to the dendrite of another neuron.
### Step-by-Step Solution: 1. **Understanding Neurons**: Neurons are the basic units of the nervous system that transmit electrical signals. They consist of three main parts: dendrites, cell body, and axon. 2. **Signal Transmission**: The transmission of signals in a neuron begins when an electrical impulse is received by the dendrites. This impulse then travels through the cell body and down the axon. 3. **Synapse Definition**: The synapse is the gap between the axon terminal of one neuron and the dendrites of the next neuron. It is where the transmission of signals between neurons occurs. ...
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What is synapse ?

A : Transmission of the nerve impulse across a synapse is accomplished by neurotransmitters . R : Transmission across a synapse usually requires neuro transmitters because there is space , i.e., synaptic cleft, that separates one neuron from another .