Question

The figure given below is the basic structural and functional unit of the human nervous system. Study the diagram and answer the following questions:

1. Write the technical term for the diagram.
2. Name two organs of our nervous system where these cells are richly found.
3. How are these cells significant for us?
4. Name the cell organelle that is absent in these cells and how does it affect our body metabolism?
5. Redraw the same figure and label the following Perikaryon, Axon, Dendrites, Myelin sheath and Node of Ranvier.

Answer 1

1. Nerve cell, or Neuron.
2. Brain and spinal cord.
3. Neurons are vital components of the neurological system. They are essential for processing information, regulating movement, seeing our surroundings, and facilitating learning and memory.
4. It contains all the cells. Nerve cells cannot divide, resulting in the absence of the centrosome.
5.