📚 What are Dendrites?
Dendrites are the branched extensions of a neuron that receive signals from other neurons. Think of them as the neuron's antennas, collecting messages from neighboring cells.
🧠 What are Axons?
An axon is a long, slender projection of a neuron that transmits signals to other neurons, muscles, or glands. It's like the neuron's output cable, sending messages to distant targets.
🔬 Dendrites vs. Axons: A Detailed Comparison
| Feature |
Dendrites |
Axons |
| Function |
Receive signals |
Transmit signals |
| Signal Direction |
Toward the cell body |
Away from the cell body |
| Number per Neuron |
Multiple |
Usually one |
| Branching |
Highly branched |
Less branched, may have collaterals |
| Myelination |
Not myelinated |
Often myelinated |
| Diameter |
Thinner |
Thicker |
| Presence of Ribosomes |
Ribosomes present |
No ribosomes |
🧪 Key Takeaways
- 📡 Signal Reception: Dendrites are specialized for receiving incoming signals from other neurons.
- ⚡ Signal Transmission: Axons are responsible for transmitting outgoing signals to target cells.
- 🌳 Structure: Dendrites are typically short and branched, while axons are long and slender.
- 🛡️ Myelination: Axons are often myelinated to increase the speed of signal transmission, whereas dendrites are not.
- 🔄 Direction: Dendrites carry signals towards the cell body; axons carry signals away from it.