Table of Contents
11 relations: Beak, Cervical mucus plug, Dehiscence (botany), Operculum (animal), Operculum (botany), Operculum (brain), Operculum (bryozoa), Operculum (fish), Operculum (gastropod), Operculum papillare, Pericoronitis.
Beak
The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals.
Cervical mucus plug
A cervical mucus plug (operculum) is a plug that fills and seals the cervical canal during pregnancy.
See Operculum and Cervical mucus plug
Dehiscence (botany)
Dehiscence is the splitting of a mature plant structure along a built-in line of weakness to release its contents.
See Operculum and Dehiscence (botany)
Operculum (animal)
An operculum 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.
See Operculum and Operculum (animal)
Operculum (botany)
In botany, an operculum (opercula) or calyptra is a cap-like structure in some flowering plants, mosses, and fungi.
See Operculum and Operculum (botany)
Operculum (brain)
In human brain anatomy, an operculum (Latin, meaning "little lid") (opercula), may refer to the frontal, temporal, or parietal operculum, which together cover the insula as the opercula of insula.
See Operculum and Operculum (brain)
Operculum (bryozoa)
In the bryozoan order Cheilostomatida, the operculum is a calcareous or chitinous lid-like structure that protects the opening through which the polypide protrudes.
See Operculum and Operculum (bryozoa)
Operculum (fish)
The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding.
See Operculum and Operculum (fish)
Operculum (gastropod)
The operculum is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc.
See Operculum and Operculum (gastropod)
Operculum papillare
The operculum papillare is the iris found in the eyes of elasmobranchs (skates, sharks and rays).
See Operculum and Operculum papillare
Pericoronitis
Pericoronitis is inflammation of the soft tissues surrounding the crown of a partially erupted tooth, including the gingiva (gums) and the dental follicle.
See Operculum and Pericoronitis
References
Also known as Opercula, Opercular, Operculum (disambiguation).

