Conduction

Definition

Conduction is the process by which pain signals are transmitted along nerve fibers to the central nervous system. It is a crucial step in the body's perception of pain.

5 Must Know Facts For Your Next Test

1. Conduction involves the movement of electrical impulses along axons of neurons.
2. Myelinated fibers conduct pain signals faster than unmyelinated fibers.
3. Local anesthetics block sodium channels, inhibiting conduction and reducing pain sensation.
4. The speed of conduction can affect the intensity and duration of perceived pain.
5. Factors like temperature and pH can influence nerve conduction velocity.

Review Questions

• What role does myelination play in the conduction of pain signals?
• How do local anesthetics affect nerve conduction?
• What factors can influence the velocity of nerve conduction?

Related terms

Nociception:

The sensory process that provides signals leading to the perception of pain.

Axon:

A part of a neuron that conducts electrical impulses away from the neuron's cell body.

Sodium Channels:

Proteins in cell membranes that allow sodium ions to enter cells, crucial for action potential propagation.