11 Facts About Campaniform sensilla

1.

Campaniform sensilla are a class of mechanoreceptors found in insects, which respond to local stress and strain within the animal's cuticle.

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2.

Sensory feedback from campaniform sensilla is integrated in the control of posture and locomotion.

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3.

Campaniform sensilla are distributed across the body surface of many insects.

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4.

Campaniform sensilla are located in regions where stress is likely to be high, including on the legs, antennae, wings, and halteres.

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5.

Campaniform sensilla typically occur on both sides of the wing, but the exact number and placement varies widely across species, likely mirroring differences in flight behavior.

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6.

In Diptera such as Drosophila, the highest density of campaniform sensilla is found at the base of the modified hind-wings, the halteres .

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7.

Activity of campaniform sensilla was first recorded by John William Sutton Pringle in the late 1930s.

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8.

Pringle determined that the oval shape of many Campaniform sensilla makes them directionally selective – they respond best to compression along their short axis.

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9.

Round campaniform sensilla can be sensitive in all directions or show directional sensitivity if the cap is asymmetrically coupled with the surrounding collar.

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10.

Feedback from leg campaniform sensilla is important for the control of kicking and jumping.

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11.

Feedback from wing and haltere campaniform sensilla is thought to mediate compensatory reflexes to maintain equilibrium during flight.

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