CNS SENSORY PATHWAYS

Question 1

POSTERIOR (DORSAL COLUMN)

Answer 1

• fine touch that can be located and identified in the
  body, such as pressure, vibration, and fluttering.
  
  • Two-point discrimination is the ability to sense two
    separate and simultaneous points of stimulation on
    the skin
  • proprioception is sensory input we gain into our joints
    and muscles to tell us about our movements and body
    position
  a) fasciculus gracilis
  b) fasciculus cuneatus

(The gracile fasciculus carries sensory input from vertebral level T6 and below and ascends into the gracile nucleus to form the gracile tubercle.

The cuneate fasciculus carries information from T6 and above and ascends into the cuneate nucleus to form the cuneate tubercle)

Question 2

ANTERIOR SPINOTHALAMIC TRACT

Answer 2

• Vague touch sensation

Question 3

LATERAL SPINOTHALAMIC TRACT

Answer 3

• Pain and temperature perception