Q.Label the parts of the neuron.

Step 1. The cell body (soma) is the spherical part containing the nucleus and other organelles, along with the neuron-specific Nissl's granules (rough endoplasmic reticulum), and is covered by the neurilemma.

Step 2. The dendrites are short, repeatedly branching fibres extending from the cell body that carry impulses toward it.

Step 3. The axon hillock is the cone-shaped region of the cell body from which the axon arises, and is where the nerve impulse is generated in a motor neuron.

Step 4. The axon is the long fibre, covered by the axolemma, that carries impulses away from the cell body; in peripheral nerves it is wrapped by Schwann cells forming the myelin sheath, interrupted at intervals by the Nodes of Ranvier. …

List each structural part of a generalised neuron in the order an impulse would pass thro …

• Forgetting the axon hillock as a distinct labelled region separate from the cell body and the axon itself. …