ascending tracts

Question 1

lateral spinothalamic tract

Answer 1

pain and temperature - free nerve endings

DRG - SG - VPL of thalamus

postcentral gyrus

anterolat WC

through out SC

Question 2

anterior spinothalamic tract

Answer 2

light touch and pressure - free nerve endings

DRG - SG - VPL of thalamus

postcentral gyrus

anterolat WC

overlaps the vestibulospinal tract

Question 3

posterior column - medial leminiscus

Answer 3

discriminative touch,
proprioception and vibration sense - cutaneous mechanoreceptors and proprioceptive receptors

DRG - nucleus gracilis and cuneatus in medulla - VPL of thalamus

postcentral gyrus

post WC

Fasciculus gracilis and Fasciculus cuneatus

Question 4

Anterior spinocerebellar tract

Answer 4

unconscious proprioception - muscle spindles, tendon organs and joint receptors of trunk and upper and lower limbs

DRG - nucleus dorsalis - no 3rd order

cerebellar cortex

lateral funiculus

throughout SC

Question 5

posterior spinocerebellar tract

Answer 5

unconscious proprioception - muscle spindles, tendon organs and joint receptors of trunk and lower limbs

DRG - nucleus dorsalis - no 3rd order

cerebellar cortex

posterolat WC and lateral funiculus

throughout SC

Question 6

spinotectal tract

Answer 6

spinovisual reflexes in response to sensation - proprioceptors

DRG - unknown - unkown

superior colliculus

anterolat WC

-

Question 7

spinoreticular tract

Answer 7

assoc w/ awareness - proprioceptors

DRG - unknown - unkown

brainstem

anterolat WC and lateral funiculus

-

Question 8

spino-olivary tract

Answer 8

conveys info from cutaenous and propriceptive organs

DRG - uknown - inferior olivary nuclei in medulla

Question 9

visceral sensory tracys

Answer 9

pain and stretch in viscera

DRG - posterior/latral gray horn - VPL of thalamus