a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
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operculum::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Type of | plate |
Examples of operculum
operculum
Thus, in Fig. 2 the gills are medial to the operculum, but lateral to the heart.
From the en.wikipedia.org
This opening is hidden beneath a protective bony cover called an operculum.
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The operculum is of very variable form in the different groups of snails that possess one.
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One part of the operculum called Broca's area plays an important role in speech production.
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The Hyolitha is a class of extinct animals with a shell and operculum that may be molluscs.
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Operculum with median genital appendage, abdominal appendages plate-shaped with nonlaminate gills.
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I was working on operculum because it had over 40 incoming links.
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As the spherical spore capsule dries, the operculum is forced off, followed by a cloud of spores.
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Numerous species have an operculum, which in many species acts as a trapdoor to close the shell.
From the en.wikipedia.org
- A hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
- An operculum (animal) is an anatomical feature, a stiff structure resembling a lid or a small door that opens and closes, and thus controls contact between the outside world and an internal part of an animal. ...
- In botany, operculum may be used to describe any of the following: *A flap of the sporangium of a moss, covering the peristome (appendages surrounding the mouth of a moss capsule). *The cap of the ascus in certain ascomycetous fungi.n*A lid covering the aperture of pollen grains. ...
- The operculum, derived from Latin, meaning "little lid". It is the most posterior portion of the inferior frontal gyrus of the frontal lobe in the brain. In an axial plane, the Sylvian fissure extends from the operculum posteriorly to divide the frontal from the temporal lobe. ...
- In the bryozoan order Cheilostomata, the operculum is a calcareous or chitinous lid-like structure that protects the opening through which the polypide protrudes.
- The operculum of a bony fish is the hard bony flap covering and protecting the gills. In most fish, the rear edge of the operculum roughly marks the division between the head and the body.
- The operculum, meaning little lid, (plural: opercula or operculums) is a corneous or calcareous anatomical structure which exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails. ...
- A covering flap or lidlike structure in plants and animals; A part of the brain
- The flap of tissue over an unerupted or partially erupted tooth.
