Sensorimotor systems

• Primary sensory neurone cell bodies in the dorsal root ganglia, project through the dorsal horn; interneurons throughout; alpha motor neurons in the ventral horn.

  
• Funiculus = “big chunk of white matter”
• Fasciculus = “particular axon tract”
• Reticulospinal tracts - send motor signals to coordinate (especially in relation to upright postural control).
• Pyramidal tracts, CB + lCS + mCS, control voluntary movements.
• The vestibulospinal tract sends vestibular motor signals.
• The tectospinal tract sends motor signals to coordinate with eye and head movements (neck and shoulder LMNs + nuclei of III, IV, and VI).
• what is the differences between the paths of the DCML and spinothalamic pathways (incl what is their sensory receptors)