Features of pain, temperature and crude touch pathway of trunk and limbs of trunk limbs Cell body position of 1st order neuron Spinal ganglion Cell body position of 2nd order neuron Nucleus proprius of post horn (Lamina r,I-Ⅷ) of spinal cord Cell body position of 3rd order neuron Ventral posterolateral nucleus(VPL)in thalamus Position of decussation Different spinal segment of spinal cord Position of fiber tract in spinal cord Ant. lat funiculus of spinal cord Name of fiber tract in brain stem spinal lemniscus Position in internal capsule Posterior limb Projection area in cortex Upper 2/3 of postcentral gyrus and post. part of paracentral lobula The other feature (A) After central process of spinal ganglion enter the spinal cord, ascend 1-2 spinal segments then decussate to contralateral spinal cord B)The decussation in spinal cord is not at the same level, rather than at different segments
Cell body position of 1st order neuron Spinal ganglion Cell body position of 2nd order neuron Nucleus proprius of post.horn (LaminaⅠ,Ⅳ~Ⅶ) of spinal cord Cell body position of 3rd order neuron Ventral posterolateral nucleus (VPL) in thalamus Position of decussation Different spinal segment of spinal cord Position of fiber tract in spinal cord Ant.& lat.funiculus of spinal cord Name of fiber tract in brain stem spinal lemniscus Position in internal capsule Posterior limb Projection area in cortex Upper 2/3 of postcentral gyrus and post.part of paracentral lobula The other feature: (A) After central process of spinal ganglion enter the spinal cord,ascend 1-2 spinal segments then decussate to contralateral spinal cord. (B) The decussation in spinal cord is not at the same level,rather than at different segments. Features of pain, temperature and crude touch pathway of trunk and limbs of trunk & limbs
In this conducting tract, only two order neurons are involved Sup. cerebellar peduncle Inf cerebellar peduncle Learn it by yourself Ant Spinocerebellar Post spinocerebellar tract tract Unconscious proprioceptive pathway of trunk and limbs Lamina∨Ⅶ Nucleus Spinal ganglion thoracicus 1st neuron body 2nd neuron body
Unconscious proprioceptive pathway of trunk and limbs Spinal ganglion Post. spinocerebellar tract Ant. Spinocerebellar tract Lamina Ⅴ - Ⅶ Inf. cerebellar peduncle Sup. cerebellar peduncle Nucleus thoracicus In this conducting tract,only twoorder neurons are involved. 1st neuron body 2nd neuron body Learn it by yourself
Pain, temperature and Central thalamic crude touch pathway radiation of head and face VPM 3rd neuron bod Pontine nucleus of v Trigeminal lemniscus 2nd neuron body Trigeminothalamic tract Trigeminal ganglion Geniculate ganglion of facial n Sup. ganglions of glossopharangeal n and agus n 1° neuron Spinal tract of trigeminal n Spinal nucleus of v neuron bodi
Trigeminal ganglion Geniculate ganglion of facial n. Sup. ganglions of glossopharangeal n. and vagus n. 1°neuron Pontine nucleus of V 2nd neuron body Spinal nucleus of V 1st neuron body Trigeminal lemniscus Trigeminothalamic tract Spinal tract of trigeminal n. VPM 3rd neuron body Central thalamic radiation Pain,temperature and crude touch pathway of head and face
Features of pain, temperature and crude touch pathway of head and face Cell body position of 1st order neuron Trigerminal ganglion in cranium Cell body position of 2nd order neuron Potine nucleus and spinal nucleus and trigeminal nerve Cell body position of 3rd order neuron Ventral posteromedial nucleus(VPM) in thalamus Position of decussation Pons and medulla oblongata Name of fiber tract in brain stem Trigeminal lemniscus Position in internal capsule Posterior limb Projection area in cortex Lower 1/3 of postcentral gyrus The other feature (A)Potine nucleus of trigeminal n related to tonch, pression sensation of head and face. spinal nucleus of trigeminal n related to pain, temperature sensation of head and face B)Decussation is not at one level
Cell body position of 1st order neuron Trigerminal ganglion in cranium Cell body position of 2nd order neuron Potine nucleus and spinal nucleus and trigerminal nerve. Cell body position of 3rd order neuron Ventral posteromedial nucleus (VPM) in thalamus Position of decussation Pons and medulla oblongata Name of fiber tract in brain stem Trigerminal lemniscus Position in internal capsule Posterior limb Projection area in cortex Lower 1/3 of postcentral gyrus The other feature: (A) Potine nucleus of trigerminal n. related to tonch,pression sensation of head and face.spinal nucleus of trigerminal n. related to pain,temperature sensation of head and face. (B) Decussation is not at one level. Features of pain,temperature and crude touch pathway of head and face
copy Review of the structure related to eye Siy Pigmented Bipolar cells cell Sclera Choroid Retina AA见 Cornea Pupil Lens Optic nerve Iris Ganglion Rod cell cell Cone cell Ciliary body Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University
Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Review of the structure related to eye Rod cell Cone cell Bipolar cell Ganglion cell Pigmented cells