Physiology III
Neuroscience Exam II
Pathways discussed in class

  

Projects From

Projects To

Purpose

Ascending (pain)         

Spinothalamic

Dorsal horn

VPL & cortex via ALS

Carries discrim pain

Spinoreticular

Dorsal horn

RF to thal & cortex

Autonomic, arousal

Spinomesencephalic

Dorsal horn

Midbrain to PAG & periventricular area

Pain sensation via ALS

Descending (pain)

        

Dorsal lateral funiculus

PAG via nucleus raphe magnus

Dorsal horn

Inhibitory carrying seratonin

  

Locus cereleus

Dorsal horn

Carries norepi to inhibit

  

PAG direct

Dorsal horn

Carrying serotonin or enkephalin to inhibit

Vestibulospinal via med. Longitudinal fasciculus

Semicircular canals and autolith organs

Dorsal horn

Goes to neck muscles to maintain posture, balance


Last Updated 09/06/01 08:53:34 PM
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