Card 19 / 27: The contraction of thoracic and abdominal striated muscles involved in vomiting depends on the stimulation of ventral horn cells at the appropriate spinal cord levels. How are these connected with the nucleus solitarius?
A.)
Tractus solitarius.
B.)
Descending tract of V.
C.)
Through the reticular formation and reticulospinal tracts.
D.)
Trigeminothalamic tract.
Answer:
C.) Through the reticular formation and reticulospinal tracts.
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Interneurons in the reticular formation make the appropriate connections. Also, there may be axons from the nucleus solitarius that synapse in the ventral horn.
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Ch 06: Head Somatic & Visceral Sensory Systems
Author:
M.D.Stephen VoronLecturer
University of Utah
USA
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