What Is a Nerve Root?

Nerve root refers to the connection between peripheral nerves and the brain or spinal cord, and is the part that the human body must pass through to regulate various reflexes. Each pair of spinal nerves has a pair of anterior and posterior roots, and the anterior and posterior roots converge into the spinal nerve at the intervertebral foramen. Anterior roots are sporty and posterior roots are sensory.

Nerve root

Clinically often refers to

Spinal radiculitis is a general term for inflammatory or degenerative lesions of the spinal nerve root caused by various reasons. Cervical-thoracic and lumbosacral radiculitis are the most common.

Clinical symptoms:

1. Onset can be acute or slow, often with infection, poisoning, nutritional metabolism disorders, spinal disease, paraspinal muscle trauma and inflammation, transverse process trauma and other medical history.

2. Radiation numbness and pain in the inner dominance range of the damaged nerve root, such as intercostal neuralgia caused by thoracic radiculitis; cervical thoracic radiculitis has pain from shoulder and neck to ulnar or (and) radial of upper limb; The lumbosacral radiculitis manifests as pain from the lumbosacral region to the medial or (and) lateral of the lower extremities and the feet. Often caused by cold, cough, defecation, etc., or make the symptoms worse.

3. In the distribution area of the anterior root of the affected nerve root, there are different degrees of inferior paramotor numbness: muscle weakness, muscle atrophy, tendon reflex loss or disappearance. For example, cervical and thoracic nerve root inflammation symptoms mostly occur in the scapular girdle and upper limbs; lumbosacral nerve root inflammation symptoms are seen in the lower limbs, the sacral nerve root damage is more serious, and there is a tonic bladder and sexual dysfunction.

4. Cerebrospinal fluid may have a slight increase in lymphocytes, muscles in the damaged area may show denervation EMG changes, peripheral nerve movement and sensory conduction speed slow down, sensory nerve evoked potential latency extended.

5. When the lesion affects the arachnoid, it is called meningeal radiculitis. If the spinal cord is involved at the same time, it is called spinal meningio-radiculitis, which can produce symptoms of spinal arachnoid inflammation.