proboscis extension reflex
The extension, through direct muscle actions, of the proboscis (the trunk-like extension of the mouthparts on the adult external head) in response to a nutritional stimulus.
GO:0007635
chemosensory behavior
is_a
GO:0051780
behavioral response to nutrient
is_a
GO:0060004
reflex
is_a
behavioral response to nutritional stimulus, proboscis extension
exact
proboscis extension in response to nutritional stimulus
exact