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Operculum (other)
Operculum may refer to: Human biology *Operculum (brain), the part of the brain covering the insula * Operculum (dentistry), a small flap of tissue which may cover an erupting or partially erupted molar * Cervical mucus plug, the cervical mucus plug that blocks the cervix of the uterus after conception Animal biology * Operculum (animal), a structure resembling a lid or a small door that opens and closes * Operculum (bird), a structure which covers the nares of some birds * Operculum (bryozoa), a lid on the orifice of some bryozoans * Operculum (fish), a flap covering the gills of bony fish * Operculum (gastropod), a sort of trapdoor used to close the aperture of some snails * Operculum papillare, the iris found in the eyes of elasmobranchs (skates, sharks, and rays) * The anterior end of the puparium in some insects, through which the adult emerges; for example the wasp ''Stenogastrinae'' Botany *Operculum (botany), various lids and flaps pertaining to plants, algae, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 insular cortex, insula as the opercula of insula. It can also refer to the occipital operculum, part of the occipital lobe. The insular lobe is a portion of the cerebral cortex that has invaginated to lie deep within the lateral sulcus. It sits like an island (the meaning of ''insular'') almost surrounded by the groove of the Circular sulcus of insula, circular sulcus and covered over and obscured by the insular opercula. A part of the parietal lobe, the frontoparietal operculum, covers the upper part of the insular lobe from the front to the back. The opercula lie on the precentral gyrus, precentral and postcentral gyrus, postcentral gyrus, gyri (on either side of the central sulcus). The part of the parietal operculum that forms the ceiling of the lateral sulcus functions as the secondary somatosensory cortex. De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (dentistry)
Pericoronitis is inflammation of the soft tissues surrounding the crown of a partially erupted tooth, including the gingiva (gums) and the dental follicle. The soft tissue covering a partially erupted tooth is known as an ''operculum'', an area which can be difficult to access with normal oral hygiene methods. The hyponym ''operculitis'' technically refers to inflammation of the operculum alone. Pericoronitis is caused by an accumulation of bacteria and debris beneath the operculum, or by mechanical trauma (e.g. biting the operculum with the opposing tooth). Pericoronitis is often associated with partially erupted and impacted mandibular third molars (lower wisdom teeth), often occurring at the age of wisdom tooth eruption (15-26). Other common causes of similar pain from the third molar region are food impaction causing periodontal pain, pulpitis from dental caries (tooth decay), and acute myofascial pain in temporomandibular joint disorder. Pericoronitis is classified into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cervical Mucus Plug
A cervical mucus plug (operculum) is a plug that fills and seals the Canal of the cervix, cervical canal during pregnancy. It is formed by a small amount of cervical mucus that condenses to form a cervical mucus plug during pregnancy. The cervical mucus plug (CMP) acts as a protective barrier by deterring the passage of bacteria into the uterus, and contains a variety of antimicrobial agents, including immunoglobulins, and similar antimicrobial peptides to those found in nasal mucus.The CMP inhibits the migration of vaginal bacteria towards the uterus, protecting against opportunistic infections that can lead to pelvic inflammatory disease and the onset of preterm labor. Ensuring the presence and proper function of the CMP is essential in reducing severe infections and promoting overall reproductive health. During Human pregnancy, pregnancy, the mucus has Viscoelasticity, viscoelastic properties and can be described as cloudy, clear, thick, salty and sticky. It holds innate and ada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
