Spinothalamic Pathway Primary somatosensory cortex (S1) Thalamus Medulla Small dorsal Dorsal Small sensory fil oot axons Spinothalamic tract Painl temperature some touch Spinal cordSpinothalamic Pathway Small sensory fibres: Pain, temperature, some touch Primary somatosensory cortex (S1) Thalamus Medulla Spinal cord Spinothalamic tract