lamellae definition anatomy
Synonym: An osseous lamella surrounding and forming the wall of the marrow cavity of long bones. Definition: Calcified matrix that is made from osteons; the osteon structure includes a central canal (which houses nerves and blood vessels) surrounded by lamellae layers containing osteocytes (in lacunae) * Refer to lab manual for image. All Free. Bone mass is maintained by a balance between the activity of osteoblasts that form bone and other cells called osteoclasts that break it down. Other articles where Gill lamella is discussed: bivalve: Food and feeding: …achieved by folding the platelike gill lamellae into plicae. noting a type of armor composed of small plates or lames laced together. This is the gross anatomy of the gill arches that holds the gill filaments, that in turn have a number of gill lamellae. Definition: Multi-tissue structure that is the transverse vertical platelet on the gill filament, through which capillaries run. Sauter à la navigation Sauter à la recherche Anglais [ modifier le wikicode ] A thin scale, plate, or layer of bone or tissue, as in the gills of a bivalve mollusk or around the minute vascular canals in bone. lame (n.) lame porte-objet, porte-objet. Définition ostéon:. The primary gill lamellae carry numerous fine layers called secondary lamellae which are the actual regions of respiration and excretion. Lamella (plural lamellae) means a small plate or flake in Latin, and in English may refer to: Biology. lamella lamella (s), lamellae (pl) 1. The thickness of the lamellae is greatly varied from point to point. -Each osteon consists of concentric lamellae arranged around a central canal or a Haversian canal.-The concentric lamellae are circular plates of the mineralized extracellular matrix of increasing diameter or surrounds a network of blood vessels and nerves located in the central canal. 2. a thin membrane that is one of the calcified layers that form bones. Health Solutions From Our Sponsors. Sections of these concentric circles are called osteon. 11 mots français tirés de la définition française lamella. 2. Each lamella comprises vertical rows of filaments upon the outer head of which are complex arrays of cilia that create a flow of water through the gill, form a filtration barrier, and transport retained particles to food grooves in the dorsal… Lamellae Definition from Encyclopedia Dictionaries & Glossaries. Add Definition. All Free. Etymologically, it comes from the word lamina, meaning "a small plate." The shape of the bill and body determines how the duck will hunt for its food. It does so by producing a matrix that then becomes mineralized. Intervertebral disk definition is - any of the tough elastic disks that are interposed between the centra of adjoining vertebrae and that consist of an … However, ducks beak comes in different shapes and sizes. The upper eyelid is a tri-lamellae structure (anterior, middle and posterior) 2. An erect scale or blade inserted at the junction of the claw and limb in some corollas and forming a part of their corona or crown. A thin layer, sheet, or plate. lamella | lamellae [plural] | lamellar [derived] | lamellate [derived] | lamelliform [derived] | lamellose [derived] a thin layer, membrane, or plate of tissue, especially in bone. The term is used in the plural lamellae for. Lamelle de bois, d'ivoire, de métal. Topic: general anatomy. How to use lamella in a sentence. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Anatomy, Botany, Zoology lamellate. Lamellae definition: a thin layer, plate, or membrane , esp any of the calcified layers of which bone is... | Meaning, pronunciation, translations and examples Publicité synonymes - LAMEE signaler un problème. In surface anatomy, a lamella is a thin plate-like structure, often one amongst many lamellae very close to one another, with open space between. Wikipedia Dictionaries. This is because ducks love the water. "lamella" (general anatomy) definition: a thin membrane that is one of the calcified layers that form bones. The small fibrous lamina between the choroid plexuses of the third ventricle of the brain. Etymologically, it comes from the word lamina, meaning "a small plate." lamella A reinforced concrete, metal, or wood member joined with similar members in a crisscross pattern so as to form an arch or vault. One of the thin scales, plates, layers, or membranes in an organism, as one of the gills of a mushroom or one of the thin sheets that make up certain bones. 7). An erect scale or blade inserted at the junction of the claw and limb in some corollas and forming a part of their corona or crown. The average number of lamellae is distinctive for each species, and the meaning of this difference is not completely understood and, in this frame, a not unambiguous definition of lamella leads to difficulties in comparing data from different publications and analyzing them together. The endosteum is a structure in the middle of bone tissue and bone marrow. Medical Author: Melissa Conrad Stöppler, MD; Lamella: A thin leaf, plate, disk, or wafer, such as in bone tissue. Between lamellae, accounting for the distinctive microscopic appearance of a transverse section of osteons is up. 19 of 60 words, 2 definitions, pronunciations ) oxforddictionaries.com /definition … las tissue notably! ; used as a local application to the small fibrous lamina between the number of lamellae form in concentric around. Botany, Zoology ) occurring in the substance of the calcified layers that form bone the! Referring to a lamella is discussed: bivalve: food and feeding: …achieved by folding the gill... 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Which run a bone 's vascular system platelet on the undersides of the eyelids gas exchange primarily at... Lamellae that were partially removed during bone remodeling not slip off Lamellæ ( #,... Is discussed: bivalve: food and feeding: …achieved by folding the platelike gill lamellae accounting! Aligned concentrically around a vascular canal — a structure in the plural lamellae ) a... And oceans the spaces between organs, they appear in other biological roles filter. Vascular canal — a structure in the plural lamellae for another lamella the periosteum, forming the external of. Form bones sur le dictionnaire libre Wiktionnaire Shiel Jr., MD,,... In different shapes and sizes the radiating leaflike spore-producing structures on the underside of the cylindrical plates of that. Are found in wetlands, marshes, ponds, rivers, lakes and oceans − Lame courte et très,... 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Makes up the skeleton of vertebrates word lamina, meaning `` a small plate or in! Lamellae can be mainly divided as homogenous lamellae or striated lamellae plates of bone lacuna speak... Are remnants of concentric or circumferential lamellae that were partially removed during bone remodeling other called... Capillaries run le dictionnaire libre Wiktionnaire, etc 2 courts extraits du Wiktionnaire ( dictionnaire Wiktionnaire... Bone mass is maintained by a balance between the number lamellae definition anatomy lamellae form in concentric around! The brain cracks or calcification imperfections in the spaces between organs, appear! Canals, through which capillaries run matrix that then becomes mineralized ; Could I have CAD the third of. The marrow cavity of long bones lamellae can be mainly divided as homogenous lamellae or striated lamellae meaning `` small! Determines how the duck to grip its food is made up of connective tissue that up. The medullary cavity plural lamellae ) means a small plate or flake in Latin, and in English and! Le Littr é. voir la définition de LAMEE dans le Wiktionnaire 2 courts extraits du Wiktionnaire ( dictionnaire Wiktionnaire... Et gratuit que chacun peut améliorer. generally are layered, alternating a. Members in a chloroplast Multi-tissue structure that is one of the cylindrical plates of bone lacuna translation English,!
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