The cervical plexus is a network of nerves formed by the anterior rami of the first four cervical spinal nerves (C1-C4). Located in the neck, it innervates muscles of the neck and diaphragm, as well as providing sensory supply to the head, neck, and chest. Understanding its anatomy is crucial in medical fields, especially for regional anesthesia and pain management.
In ultrasound, the cervical plexus can be visualized for nerve blocks or to assess nerve pathology. High-frequency linear probes are typically used to identify the individual nerve roots and branches, aiding in procedures like supraclavicular or interscalene blocks. This precise imaging enhances safety and efficacy in various medical interventions involving the neck and upper thorax.