Dendrites

Dendrites are the branch-like structures that extend from the cell body of a neuron. They are responsible for receiving signals from other neurons and transmitting those signals to the cell body. Dendrites play a crucial role in the process of neural communication and are essential for the functioning of the nervous system.

Structure of Dendrites

Each neuron can have multiple dendrites, which are covered in small protrusions called dendritic spines. These spines provide additional surface area for receiving signals from other neurons. The structure of dendrites allows for a large number of synaptic connections, enabling the neuron to integrate a wide range of incoming signals.

Function of Dendrites

The main function of dendrites is to receive incoming signals from other neurons. When a signal reaches a dendrite, it can trigger an electrical impulse that travels along the dendrite and eventually reaches the cell body. The combined signals from multiple dendrites determine whether the neuron will generate its own signal and transmit it to other neurons.

Study Guide

1. What are dendrites?
2. Describe the structure of dendrites.
3. What is the function of dendrites?
4. How do dendritic spines contribute to the function of dendrites?
5. Explain the role of dendrites in neural communication.

Understanding the structure and function of dendrites is essential for comprehending how neurons communicate and process information in the nervous system.