On a New Organ in Insects.

Hicks, J. Braxton

doi:10.1111/j.1096-3642.1856.tb00965.x

Cited by 10 publications

(3 citation statements)

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“…Although the sense organs in the wings of Diptera have been described by many histologists during the last 100 years (Hicks, 1857), one type seems to have escaped detection. The costal vein has on both ventral and dorsal surfaces a row of hairs which project perpendicular to the plane of the wing proper.…”

Section: Introductionmentioning

confidence: 99%

Electrical Activity in the Chemoreceptors of the Blowfly

Wolbarsht

Dethier

1958

The Journal of General Physiology

113

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The electrical responses of the neurons associated with the various types of chemosensory hairs of the blowfly, Phormia regina Meigen, following stimulation by chemical and mechanical means have been studied. The singly innervated chemosensory hairs on the ovipositor, maxillary palpi, and antennae respond vigorously to chemical stimulation, but not to mechanical stimulation. The triply innervated chemosensory hairs on the labeUum, tarsus, and wing have two neurons which respond only to chemical stimuli. The third neuron responds only to mechanical stimulation. The differential responses of the two chemosensory neurons to various chemical stimuli following the removal of the tip of the hair suggest that the structures responsible for chemoreception are located throughout the distal processes of these neurons. The response of the third neuron to mechanical stimulation is similar to the response recorded from the neuron associated with one type of tactile hair which responds to motion and not to steady deformation. Recordings have been made from the neurons associated with purely tactile hairs using the cut hair as an extension of the micropipette. The mechanosensory neuron of the wing chemosensory hair is capable of responding at the rate of at least 600 impulses per sec. and may serve to indicate changes in air flow over the wing surfaces during flight to enable the fly to correct the wing camber and attack angle.

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Section: Introductionmentioning

confidence: 99%

Electrical Activity in the Chemoreceptors of the Blowfly

Wolbarsht

Dethier

1958

The Journal of General Physiology

113

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“…This paper describes our recent findings in electron microscopic investigations of proprioceptive campaniform sensilla on cockroach legs . Campaniform sensilla were originally described by Hicks (1857) ABSTRACT Campaniform sensilla on cockroach legs provide a good model system for the study of mechanoreceptive sensory transduction . This paper describes the structure of campaniform sensilla on the cockroach tibia as revealed by light-and electron-microscopy .…”

Section: Introductionmentioning

confidence: 99%

The Fine Structure of Cockroach Campaniform Sensilla

Moran

Chapman

Ellis

1971

The Journal of Cell Biology

132

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Campaniform sensilla on cockroach legs provide a good model system for the study of mechanoreceptive sensory transduction. This paper describes the structure of campaniform sensilla on the cockroach tibia as revealed by light- and electron-microscopy. Campaniform sensilla are proprioceptive mechanoreceptors associated with the exoskeleton. The function of each sensillum centers around a single primary sense cell, a large bipolar neuron whose 40 µ-wide cell body is available for electrophysiological investigation with intracellular microelectrodes. Its axon travels to the central nervous system; its dendrite gives rise to a modified cilium which is associated with the cuticle. The tip of the 20 µ-long dendrite contains a basal body, from which arises a 9 + 0 connecting cilium. This cilium passes through a canal in the cuticle, and expands in diameter to become the sensory process, a membrane-limited bundle of 350–1000 parallel microtubules. The tip of the sensory process is firmly attached to a thin cap of exocuticle; mechanical depression of this cap, which probably occurs during walking movements, effectively stimulates the sensillum. The hypothesis is presented that the microtubules of the sensory process play an important role in mechanoelectric transduction in cockroach campaniform sensilla.

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“…B. Hicks in the mid nineteenth century (Hicks, 1857) and termed 'sensilla campaniformia' in 1909 (Berlese, 1909), early speculation on their function centred around their possible chemosensory role. However, R. Vogel also suggested that the structures may have a mechanosensory function (Vogel, 1911).…”

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confidence: 99%