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Mechanism of Ciliary Motion

Mechanism of Ciliary Motion

The ciliary structures were first seen in 1647 by Antonie Leeuwenhoek while observing the protozoans. In lower organisms, these appendages are responsible for cell movement, while in higher organisms, these appendages help in the movement of the extracellular fluids within the body cavities.
The cilia are made up of microtubules in a 9+2 arrangement, with nine microtubule doublet ring bundles, surrounding a pair of central singlet microtubule bundles. The doublet microtubule bundles are...

Mechanism of Ciliary Motion

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The ciliary structures were first seen in 1647 by Antonie Leeuwenhoek while observing the protozoans. In lower organisms, these appendages are responsible for cell movement, while in higher organisms, these appendages help in the movement of the extracellular fluids within the body cavities.
The cilia are made up of microtubules in a 9+2 arrangement, with nine microtubule doublet ring bundles, surrounding a pair of central singlet microtubule bundles. The doublet microtubule bundles are...

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Related Experiment Video

Updated: Jun 2, 2026

Observation of the Ciliary Movement of Choroid Plexus Epithelial Cells Ex Vivo

Observation of the Ciliary Movement of Choroid Plexus Epithelial Cells Ex Vivo

Published on: July 13, 2015

[Bilateral ciliary zonule defect].

H Neunhöffer¹, L Goldammer, V Gravenhorst

¹Universitäts-Augenklinik, Robert-Koch-Str. 40, 37075, Göttingen, Deutschland. henrike.neunhoeffer@med.uni-goettingen.de

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft

|April 20, 2011

Summary

This summary is machine-generated.

Anterior segment colobomas, specifically ciliary zonule defects, can cause significant vision problems like myopia and astigmatism. This summary discusses two cases and their differential diagnoses.

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Area of Science:

Ophthalmology
Genetics
Developmental Biology

Background:

Anterior segment colobomas are congenital defects that can affect various ocular structures.
Ciliary zonule colobomas specifically impact the lens support, leading to refractive and visual disturbances.
These defects may occur in isolation or with posterior segment anomalies.

Observation:

Two distinct cases of ciliary zonule coloboma are presented, showcasing varied clinical presentations.
The cases highlight the spectrum of visual acuity and refractive errors associated with zonular defects.
Associated ocular findings, such as amblyopia and cataract, were noted.

Findings:

Ciliary zonule coloboma results in altered lens shape, causing myopia and astigmatism.
The severity of refractive error correlates with the degree of zonular malformation.
Differential diagnoses for zonular coloboma include other causes of lens subluxation and refractive anomalies.

Implications:

Accurate diagnosis of ciliary zonule coloboma is crucial for appropriate management and visual rehabilitation.
Understanding the spectrum of presentation aids in predicting visual outcomes.
Further research into the genetic and developmental underpinnings can inform future therapeutic strategies.