Question

You react to an odor by vomiting. Your reaction to the above odor would _______?

a) be a reflex

b) utilize both afferent and efferent pathways

c) utilize both sensory and motor pathways

d) two of the above

e) all of the above

Answer 1

answer is "e" all the above

Vomiting is a partially voluntary act of forcefully expelling gastric or intestinal content through the mouth.
Vomiting center is situated bilaterally in medulla oblongata near the tractus solitarius
The sensory impulses from the irrited part of GIT or other organs are transmitted to the vomiting center through vagus and sympathetic afferent fibers.
The motor impulses causing act of the vomiting are transmitted from vomiting center through V, VII,IX, X and XII cranial nerves to the upper part of gastrointestinal tract and through spinal nerves to diaphragm and abdominal muscle.