Last neurotime with severson

Question 1

Where is the main (chief) sensory nucleus for the trigeminal pathway?

Answer 1

in the pons

Question 2

Pain and temperature from the face (trigeminal 1st order neurons) enter the spinal cord where and synapse where?

Answer 2

descend and enter down in the spinal tract V, THEN synapse in the spinal nucleus V (this is analagous to lissaur’s tract and the substantia gelatinosa)

Question 3

proprioception fibers from the trigeminal go where and synapse where?

Answer 3

they go up the mesencephalic tract of V, where the pseudounipolar nucleus is in the midbrain (!!), then they come back down to the pons where they synapse on the motor nucleus V in the pons

Question 4

Where do mechanoreceptors synapse for the trigeminal nerve?

Answer 4

Main sensory nucleus

Question 5

Spinal V tract, what order neurons?

What type of neurons?

Answer 5

first

Pain and temp