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、12胸、5腰、5骶和1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.

脊分为8、12胸、5腰、5骶与1尾。

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）和骶3（S3）组成；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。

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、12胸、5腰、5骶和1尾。