Sensorimotor Systems

Question 1

What do mechanoreceptors project into?

Answer 1

Dorsal horn

Question 2

Which tracts are ascending vs descending?

Answer 2

Question 3

How is touch detected in the upper and lower body (not head)?

Answer 3

Question 4

How is touch detected in the head?

Answer 4

Question 5

What are the neclei of the thalamus?

Answer 5

The ear- body somatosenstion, head somatosensation, auditory and affective pain/limbic basal ganglia circuits

Vision- visual

Subcortical- motor basal ganglia circuits and affective pain/limbic basal ganglia circuits

Cortex- body somatosenstion, head somatosensation and taste and affective pain/limbic basal ganglia circuits

Question 6

What is proprioception and where to the proprioceptors project?

Answer 6

Question 7

Unconscious vs conscious proprioceptive circuitry

Answer 7

Question 8

What afferent fibres are involved in pain?

Answer 8

Question 9

What is the nociceptive circuitry?

Answer 9

Question 10

What is the ascending pain pathway?

Answer 10

Question 11

First (sensory-discriminative) v second (affective-motivational) pain pathway

Answer 11

Question 12

What are the descending modulating systems for pain?

Answer 12

Question 13

What is the local modulation of pain in the dorsal horn?

Answer 13

Question 14

How do the motor pathways integrate with DCML and spinothalamic?

Answer 14