Ascending tracts Spinothalamic Tract Conduct pain temperature and simple touch sensation of trunk and limbs Origin: Laminae i,Ⅳ~Ⅶ of spinal cord Termination: Dorsal thalamusAscending tracts Spinothalamic Tract Conduct Pain, temperature and simple touch sensation of trunk and limbs Origin: Laminae Ⅰ,Ⅳ~Ⅶ of spinal cord Termination: Dorsal thalamus