I Understand how basal and reflex tears may be controlled by the parasympathetic nervous system as they are automated survival skills, but emotional lacrimating (or psychic tears) does not seem to make sense as it is a very conscious response to external stimuli.
S. Béatrice Marianne Ewalds-Kvist
Dear Adelaide,
Lacrimation, or lachrymation, (from Latin lacrima, meaning "tear") is the secretion of tears and a response to strong emotions. Here is a good link with an explanation how this mechanism works:
https://en.wikipedia.org/wiki/Tears
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Fatima Mohammed Hussen
parasympathatic system increase lacrymation and other secrections like saliva and nasal secretion while sympathetic system reduces them
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