Phrenic nerve What are the Symptoms of root irritation c4 right?

The phrenic nerve arises from the ventral rami of the fourth cervical (C4) spinal nerve roots. It mainly supplies the diaphragm, which is the primary muscle of respiration. Root irritation at C4 can lead to a variety of symptoms, including:

1. Diaphragmatic paralysis: This is the most serious complication of C4 root irritation and can lead to respiratory failure. Symptoms include:

- Difficulty breathing

- Shortness of breath

- Chest pain

- Coughing

- Wheezing

2. Shoulder pain: Irritation of the C4 nerve root can also cause pain in the shoulder and arm. This pain is typically described as a sharp, burning, or aching sensation that may radiate down the arm to the hand.

3. Neck pain: C4 root irritation can also cause pain in the neck. This pain is typically located on the side of the neck and may extend down to the shoulder.

4. Headaches: Irritation of the C4 nerve root can also cause headaches. These headaches are typically located on the side of the head and may be accompanied by other symptoms such as nausea, vomiting, and sensitivity to light.

5. Weakness or loss of sensation in the arm: Irritation of the C4 nerve root can also lead to weakness or loss of sensation in the arm. This may affect the ability to move the arm or hand and may also make it difficult to feel pain, heat, or cold.