This document outlines several nervous pathways and systems in the human body, including: 1. The conscious proprioceptive and fine touch pathway of the trunk and limbs, which involves spinal ganglia, the fasciculus gracilis and cuneatus, and decussation of the medial lemniscus. 2. The pain, temperature, and simple touch pathway of the trunk and limbs, involving spinal ganglia, the lateral spinothalamic tract, and VPL neurons. 3. The visual pathway, which includes the optic nerve, optic chiasma, optic tract, lateral geniculate body, and optic radiation.

1. The Nervous pathway

2. Conscious proprioceptive
and fine touch pathway
of trunk and limbs
Spinal ganglion
1°neuron
Fasciculus gracilis
Fasciculus cuneatus
Gracile and cuneate nuclei
2°neuron
Decussation of medial lemniscus
Medial lemniscus
VPL
3°neurons
Central thalamic
radiation
T4

3. Unconscious
proprioceptive
pathway
Spinal ganglion
Posterior spinocerebellar tract
Anterior
Spinocerebellar
tract
Lamina Ⅴ-Ⅶ
Inferior cerebellar peduncle
Superior cerebellar peduncle
Nucleus
thoracicus

4. Pain, temperature
and simple touch
pathway of trunk and
limbs
Spinal ganglia
1°neuron
LaminaⅠ,Ⅳ~Ⅶ
2°neuron
Lateral spinothalamic tract
anterior spinothalamic tract
Spinal lemniscus
VPL 3°neurons
Central thalamic
radiation

5. Pain, temperature and simple
touch pathway of head and
face
Trigeminal ganglion
1°neuron
Pontine nucleus of V
2°neuron
Spinal nucleus of V
2°neuron
Trigeminal lemniscus
Spinal tract of trigeminal n.
VPM
3°neurons
Central
thalamic
radiation

6. Visual pathway
Optic nerve
Optic chiasma
Optic radiation
Lateral geniculate body
Visual area
Optic tract

7. Optic nerve
Optic chiasma
Optic tract
Lateral geniculate
body
Optic radiation
Visual area

8. Pupillary reflexes
Pretectal area
Accessory oculomotor nuclei
Occculomotor n.
Ciliary ganglia
Sphincter pupil
Ciliary muscle

9. Auditory
pathway
Spinal organ
Bipolar neuron of
cochlear ganglion
Cochlear nerve
Cochlear nuclei
Trapezoid body
Lateral lemniscus
Medial geniculate body
Acoustic radiation
Transverse temporal gyrus

10. Corticospinal tract
Corticospinal tract
Decussation of pyramid
Lateral corticospinal tract
Anterior corticospinal tract
upper motor neuron
Lower motor neuron

11. Corticonuclear
tract
Nucleus of oculomotor n.
Nucleus of trochlear n.
Motor nucleus of trigeminal n.
Nucleus of abducent n.
Sup. part of nucleus of facial n.
Inf. part of nucleus of facial n.
Nucleus of ambiguus
Nucleus of accessory n.
Nucleus of hypoglossal n.

13. Extrapyramidal system

14. Extrapyramidal
system