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Q What is the structure present in both non-myelinated and myelinated neurons?

ID: #8750 Nervous System 126 views
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#8750Q ID
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Nervous SystemTopic
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  • A Myelin forming Schwan cells ✔ ✖
  • B Myelin sheath ✔ ✖
  • C Nissl’s granules ✔ ✖
  • D Nodes of Ranvier ✔ ✖
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Explanation

Nissl’s granules are present in both non-myelinated and myelinated neurons. These granules are clusters of rough endoplasmic reticulum (ER) and free ribosomes in the cell body of the neuron. They play an important role in protein synthesis, which is essential for the survival and function of the neuron. On the other hand, myelin forming Schwan cells are only present in myelinated neurons, where they wrap around axons to form the myelin sheath. Nodes of Ranvier are only present in myelinated neurons and are the points between two adjacent myelin sheaths where the axon is exposed.

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