Dendrites are branch-like structures that receive incoming signals from other neurons. They act like antennas, collecting information and sending it towards the cell body.
The myelin sheath is a fatty substance that wraps around and insulates axons, allowing for faster transmission of neural impulses.
Nodes of Ranvier: Nodes of Ranvier are small gaps in the myelin sheath where the axon is exposed. These nodes help speed up signal conduction by allowing electrical impulses to jump from one node to another.