The peripheral nerves originating from the spinal cord are called the spinal nerves.

发出周围神经叫做神经。

Each nerve is formed by a dorsal and a ventral root.

每支神经都由腹组成。

You could avulse a nerve root and cause paralysis.

你会撕脱神经 然后导致瘫痪。

You can see them compressing at the L4 nerve root.

你可以看到它们正挤压第4腰椎上神经。

Now, each spinal nerve is in charge of the sensation of a specific area of the skin, called a dermatome.

每一神经都负责着特定区域感觉，该区域称皮节。

Now we have 31 pairs of spinal nerves which branch off the spinal cord.

我们分出31对神经。

Finally, any growth within the spinal canal like tumor, cysts, or abscesses can cause compression of the spinal nerves.

最后，任何椎管内占位，如肿瘤、囊肿或脓肿，都可压迫神经。

Dermatomes of the spinal nerves of the sacral plexus cover almost the entire surface of the thigh, leg, and foot.

骶神经丛神经皮节包括几乎整个大腿、小腿足表面。

The PNS is a vast network of spinal and cranial nerves that are linked to the brain and the spinal cord.

PNS是由连接到脑神经脑神经构成巨大网络。

In this condition, the prenatal spinal deformities result in only the meninges, and not the spinal nerves, slipping into the gaps between the deformed vertebrae.

这种患儿先天柱畸形只影响脑膜，脑膜疝入畸形椎骨间缝隙，而神经不受影响。

It is caused by irritation or damage to the sciatic nerve and spinal nerve roots of sacral plexus, most commonly, as a result of disc herniation.

它是由于坐骨神经或骶神经丛神经受到刺激或损伤引起，最常见病因是继发于椎间盘突出。

Since the spinal nerves are undamaged, people with this form of the disorder are often asymptomatic, and the condition is usually only found accidently later in life.

由于神经没有受损，患有这种疾病人通常没有症状，只在生活中偶然发现。

PNS consists of total 43 pairs of nerve, among which 12 originate in brain, named as cranial nerves and 31 originate from spinal cord, hence called as spinal nerves.

周围神经系统由 43 对神经组成，其中 12 对起源于脑，称脑神经，31 对起源于，故称神经。

Some unique symptoms are that the pain of osteoid osteoma typically gets worse at night, while osteochondromas and osteoblastomas sometimes press against spinal nerves, causing numbness and limb weakness.

一些独特症状如骨样骨瘤疼痛通常会在夜间加剧，而骨软骨瘤、成骨细胞瘤有时会压迫神经，引起麻木四肢无力。

For peripheral nerves, the cell body can either be located in the spinal cord where it's called a spinal nerve or the brain where it's called a cranial nerve.

周围神经神经元胞体，若位于中，就称神经；若位于脑中，则称脑神经。

There are 31 pairs of nerves originating from the spinal cord called spinal nerves; there are 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal.

由发出31对神经称神经：包括8对颈神经、12对胸神经、5对腰神经、5对骶神经1对尾神经。

Transverse means extending completely across something, in this case, it refers to going across the spinal cord, and myelitis means inflammation of myelin, which is the fatty substance surrounding nerves.

“横贯性 transverse”代表影响整个平面，这里特指平面；“炎 myelitis”代表神经鞘炎症；鞘是包裹在神经纤维外面一层脂质。

The Peripheral Nervous System. The peripheral nervous system includes 12 cranial nerves and 31 pairs of spinal nerves. It can be subdivided into the somatic and autonomic nervous systems.

3。周围神经系统;周围神经系统包括12条脑神经31对神经。它可以细分躯体神经系统自主神经系统。

It's formed by the spinal nerves L4, L5 and S1, 2 and 3, which leave the spinal canal through the intervertebral foramen, an opening located between the vertebrae and behind intervertebral discs.

它是由神经腰4（L4）、腰5（L5）、骶1（S1）、骶2（S2）骶3（S3）组成；这些神经通过椎间孔离开椎管；椎间孔椎骨之间、椎间盘后方椎管开口。

These are grouped into 8 pairs of cervical nerves, 12 pairs of thoracic nerves, 5 pairs of lumbar nerves, 5 pairs of sacral nerves and 1 pair of coccygeal nerves.

这些神经分8对颈神经、12对胸神经、5对腰神经、5对骶神经与1对尾神经。