31 Pairs of Spinal Nerves & 12 Pairs of Cranial Nerves

Thoracic Spinal Nerves(T1-T12)

Cervical spinal nerves下一段层，一到十二层

Abducens Cranial nerves(VI)

Cranial Nerve VI Turns eye laterally

Vagus Cranial Nerves(X)

Cranial Nerve X

Sacral Spinal Nerves (S1-S5）

Lumbar Spinal Nerves下一段层（S1-S5）

Facial Cranial Nerves (VII)

Motor for muscles of facial expression

Lumbar Spinal Nerves

Thoracic Spinal Nerves下一段层（L1-L5）

Trigeminal Cranial Nerve(V)

chewing

Glossopharyngeal Cranial Nerves(IX)

cranial nerve IX

Vestibulocochlear Cranial Nerves(VIII)

hearing and balance

Accessory Cranial Nerve (XI)

motor fibers to neck and upper back

Oculomotor Cranial Nerve(III)

motor, eye movement

Trochlear Cranial Nerve(IV)

moves eyes; cranial nerve #4

Olfactory Cranial nerves(I)

sense of smell

Hypoglossal Cranial Nerve(XII)

tongue movement

Optic cranial nerve(II)

vision

Coccygael Spinal Nerves

最后一对，只有一对在脊椎骨

Cervical Spinal Nerves(C1-C8)

脊椎一到八层