Myelin sheath is produced by:
1. | Astrocytes and Schwann cells |
2. | Oligodendrocytes and Osteoclasts |
3. | Osteoclasts and Astrocytes |
4. | Schwann cells and Oligodendrocytes |
Receptor sites for neurotransmitters are present on:
1. Pre-synaptic membrane
2. Tips of axons
3. Post-synaptic membrane
4. Membrane of synaptic vesicles
Which of the following statement is correct for the node of Ranvier of nerve:
1. Neurilemma is discontinuous
2. Myelin sheath is discontinuous
3. Both neurilemma & Myelin sheath are discontinuous
4. Covered by myelin sheath