Spinal Trigeminal (sensory) Pathway

Question 1

Function

Answer 1

Pain/temp from head/face

Question 2

Receptors

Answer 2

Free nerve endings (nociceptors)

Question 3

1st synapse

Answer 3

Spinal trigeminal nucleus

Question 4

SC tract

Answer 4

N/A

Question 5

Decussates?

Answer 5

Caudal medulla/ cervical SC (as it leaves spinal V nucleus)

Question 6

Brainstem pathway

Answer 6

Descending spinal tract of V
Ascending medial side of STT

Question 7

2nd order Target

Answer 7

VMpo thalamus

Question 8

Final Target

Answer 8

Middle insular cortex