Answered

Define and briefly describe the functions of the following parts:

\begin{tabular}{|l|l|l|}
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& Structure & Function \\
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1 & Dendrites & \\
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2 & Synapse & \\
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3 & Axon & \\
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4 & Myelin sheath & \\
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5 & Axon terminal & \\
\hline
6 & Node of Ranvier & \\
\hline
7 & Receptors & \\
\hline
8 & Effectors & \\
\hline
\end{tabular}



Answer :

Certainly! Below is a brief description of each part you're inquiring about:

\begin{tabular}{|l|l|l|}
\hline
& Structure & Function \\
\hline
1 & Dendrites & Dendrites are tree-like extensions at the beginning of a neuron that help in receiving signals from other neurons. They conduct electrical messages toward the cell body. \\

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2 & Synapse & The synapse is the junction between two neurons, where the axon terminal of one neuron meets the dendrite of another. It allows for the transmission of electrical or chemical signals. \\

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3 & Axon & The axon is a long, slender projection of a neuron that typically conducts electrical impulses (action potentials) away from the neuron's cell body toward other neurons or effectors. \\

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4 & Myelin sheath & The myelin sheath is a layer of fatty substance that surrounds the axon of many neurons. It accelerates the transmission of electrical impulses along the axon. \\

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5 & Axon terminal & The axon terminal is the end part of an axon where the electrical impulse triggers the release of neurotransmitters to communicate with the next neuron in the chain. \\

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6 & Node of Ranvier & The Nodes of Ranvier are small gaps in the myelin sheath along the axon. These nodes facilitate the rapid conduction of nerve impulses via saltatory conduction. \\

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7 & Receptors & Receptors are specialized protein molecules on the surface of neurons that receive chemical signals from neurotransmitters to transmit information within the nervous system. \\

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8 & Effectors & Effectors are muscles or glands that respond to neural stimuli by executing actions (e.g., muscle contraction or hormone release) based on received nerve signals. \\
\hline
\end{tabular}