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.

由脊髓发出的31称为脊：包括8颈、12胸、5腰、5骶1。

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.

它是由脊腰4（L4）、腰5（L5）、骶1（S1）、骶2（S2）骶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。

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.

这些脊分为8颈、12胸、5腰、5骶与1。

Spinal nerves take their origins from the spinal cord. They control the functions of the rest of the body. In humans, 31 pairs of spinal nerves include 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal.

脊起源于脊髓，控制身体其他部分的功能。人类有31脊，包括8颈、12胸、5腰、5骶1。