Definition
The cervical plexus is a network of nerves located in the neck, arising from the first four cervical spinal nerves (C1-C4). It's like a communication hub connecting your brain to muscles and skin in your head, neck, and shoulders ðĢïļ. This plexus controls neck movement, provides sensation, and even contributes to breathing. Think of it as the electrical wiring for your upper body's vital functions. It's responsible for innervating the diaphragm via the phrenic nerve. Without it, head and shoulder movement and breathing would be difficult ðĪļ.