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

发出的周围叫做。

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

每支都由腹根和背根组成。

You could avulse a nerve root and cause paralysis.

你会撕脱根 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腰椎上的根。

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

我们的出31对。

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

最后，任何椎管内的占，如肿瘤、囊肿或脓肿，都可压迫。

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

丛的的皮节包括几乎整个大腿、小腿和足的表面。

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

每一根都负责着特定区域的感觉，该区域称为皮节。

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

PNS是由连接到脑和的和脑构成的巨大网络。

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.

它是由于坐骨或丛的根受到刺激或损伤引起的，最常见的病因是继发于椎间盘突出。

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.

这种患儿先天的柱畸形只影响脑膜，脑膜疝入畸形的椎骨间缝隙，而不受影响。

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.

一些独特的症状如骨样骨瘤的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，引起麻木和四肢无力。

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.

由于没有受损，患有这种疾病的人通常没有症状，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.

周围系统由 43 对组成，其中 12 对起源于脑，称为脑，31 对起源于，故称为。

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.

由发出的31对称为：包括8对颈、12对胸、5对腰、5对和1对尾。

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.

这些为8对颈、12对胸、5对腰、5对与1对尾。

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.

周围的元胞体，若于中，就称为；若于脑中，则称为脑。

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。周围系统;周围系统包括12条脑和31对。它可以细为躯体系统和自主系统。

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.

它是由腰4（L4）、腰5（L5）、1（S1）、2（S2）和3（S3）组成；这些通过椎间孔离开椎管；椎间孔为椎骨之间、椎间盘后方的椎管的开口。

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”代表鞘的炎症；鞘是包裹在纤维外面的一层脂质。