A spinal nerve is a mixed nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body. In the human body there are...

the spinal accessory nerve. Strength testing of these muscles can be measured during a neurological examination to assess function of the spinal accessory...

pair of sensory nerve roots and one pair of motor nerve roots. The nerve roots then merge into bilaterally symmetrical pairs of spinal nerves. The peripheral...

The dorsal root of spinal nerve (or posterior root of spinal nerve or sensory root) is one of two "roots" which emerge from the spinal cord. It emerges...

dorsal ramus of spinal nerve, posterior ramus of spinal nerve, or posterior primary division is the posterior division of a spinal nerve. The dorsal rami...

ramus (pl.: rami) (Latin for 'branch') is the anterior division of a spinal nerve. The ventral rami supply the antero-lateral parts of the trunk and the...

extensor hallucis longus Lumbar spinal nerve 3 Lumbar spinal nerve 4 Lumbar spinal nerve 5 The spinal cord with spinal nerves The plan of the lumbosacral...

arise from the merging of the anterior rami of spinal nerves and blood vessels. There are five spinal nerve plexuses, except in the thoracic region, as well...

The cervical spinal nerve 8 (C8) is a spinal nerve of the cervical segment. It originates from the spinal column from below the cervical vertebra 7 (C7)...

of sciatica is due to a spinal disc herniation pressing on one of the lumbar or sacral nerve roots. Spondylolisthesis, spinal stenosis, piriformis syndrome...

neurology, the ventral root of spinal nerve, anterior root, or motor root is the efferent motor root of a spinal nerve. At its distal end, the ventral...

The sacral spinal nerve 1 (S1) is a spinal nerve of the sacral segment. It originates from the spinal column from below the 1st body of the sacrum S1 supplies...

The cervical spinal nerve 5 (C5) is a spinal nerve of the cervical segment. It originates from the spinal column from above the cervical vertebra 5 (C5)...

The cervical spinal nerve 6 (C6) is a spinal nerve of the cervical segment. It originates from the spinal column from above the cervical vertebra 6 (C6)...

Cervical spinal nerve 4, also called C4, is a spinal nerve of the cervical segment. It originates from the spinal cord above the 4th cervical vertebra...

The cervical spinal nerve 1 (C1) is a spinal nerve of the cervical segment. C1 carries predominantly motor fibres, but also a small meningeal branch that...

ganglion (or spinal ganglion; also known as a posterior root ganglion) is a cluster of neurons (a ganglion) in a dorsal root of a spinal nerve. The cell...

spinal nerve roots come out above the corresponding vertebrae (i.e., nerve root between the skull and 1st cervical vertebrae is called spinal nerve C1)...

of skin that is mainly supplied by afferent nerve fibres from the dorsal root of any given spinal nerve. There are 8 cervical nerves (C1 being an exception...

cervical spinal roots and its many functions. In the cervical spine, nerve roots exit the spine above the associated vertebra (i.e. the C6 nerve root exits...

the nerve and disrupt its function. In a radiculopathy, the problem occurs at or near the root of the nerve, shortly after its exit from the spinal cord...

the trigeminal nerve (lit. triplet nerve), also known as the fifth cranial nerve, cranial nerve V, or simply CN V, is a cranial nerve responsible for...

The phrenic nerve is a mixed motor/sensory nerve that originates from the C3-C5 spinal nerves in the neck. The nerve is important for breathing because...

Spinal stenosis is an abnormal narrowing of the spinal canal or neural foramen that results in pressure on the spinal cord or nerve roots. Symptoms may...

the limbs, weakness from spinal nerve compression, or concern about some other neurologic injury or disorder. Spinal nerve injury does not cause neck...

A spinal disc herniation is an injury to the intervertebral disc between two spinal vertebrae, usually caused by excessive strain or trauma to the spine...

Spinal decompression is the relief of pressure on the spinal cord or on one or more compressed nerve roots passing through or exiting the spinal column...

The thoracic spinal nerve 1 (T1) is a spinal nerve of the thoracic segment. It originates from the spinal column from below the thoracic vertebra 1 (T1)...

The cervical spinal nerve 3 (C3) is a spinal nerve of the cervical segment. It originates from the spinal column from above the cervical vertebra 3 (C3)...

The sacral spinal nerve 3 (S3) is a spinal nerve of the sacral segment. It originates from the spinal column from below the 3rd body of the sacrum. S3...