- The cell body, also known as the soma, is the main part of the neuron.
- It contains the nucleus and other vital organelles necessary for the cell's survival and function.
2. Axon:
- An axon is a long, slender projection of a neuron that transmits electrical impulses away from the cell body to other neurons, muscles, or glands.
- There is typically only one axon per neuron, and it can be several meters long in some cases.
- The labeled part of the neuron is the axon.
3. Other Structures:
The labeled part of the neuron is specifically the axon. Other structures of a neuron include:
- Dendrites: Short, branched extensions of the cell body that receive electrical impulses from other neurons.
- Myelin Sheath: A layer of fatty material that insulates the axon and helps speed up the transmission of electrical impulses.
- Nodes of Ranvier: Small gaps in the myelin sheath where electrical impulses are regenerated.
- Synapses: Junctions where the axon of one neuron communicates with dendrites or cell bodies of other neurons.