Dictionary > Lamellae

Lamellae

Definition
noun, singular: lamella
(general)
Thin structures resembling a plate.
(cell biology)
Intergrana thylakoids, i.e. stroma thylakoids that connect grana (stacks of thylakoid discs).
(botany)
(1) Plate-like layers of pectin that cement cell walls of adjacent plant cells, and involved in forming plasmodesmata between cells and rendering stability in plants
(2) Thin scales or plate-like structures growing from the petals in certain flowers.
(3) Thin sheets of cells standing up along the midrib of leaves in mosses.
(mycology)
Radiating leaflike spore-producing structures beneath the cap of a mushroom or similar fungus; gills of the mushroom.
(zoology)
(1) Bony concentric layers surrounding the haversian canals in bone.
(2) Thin layers or pages in a gill book involved in respiration, as in horseshoe crabs
(3) Structures involved in respiration, and are of two types: the primary and secondary gill lamellae that increase the amount of oxygen intake of the blood in fish.
(4) Miniature ridges inside the bills of water-feeding ducks (Anatidae) and water birds (e.g. Phoenicopteridae), and serve as filters during feeding.
(5) Flanges or teeth-forming barriers inside the aperture of a snail’s shell.
(6) Precursors of the prepuce during the development of urinary and reproductive organs in humans.
(medicine)
Small disks of gelatin mixed with a medicinal substance to treat conjuntiva.
Supplement
Word origin: Latin lāmella, small thin plate, diminutive of lāmina, thin plate.
Related forms: lamellar (adjective).

Related phrases: middle lamellae (botany).


You will also like...

Cell structure
Cell Structure

A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..

3D rendering of an antibody
Passive and Active Types of Immunity

Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..

Chromosomes X and Y and Sex Determination
Chromosomes X and Y and Sex Determination

This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

Schematic diagram of DNA replication
DNA Structure & DNA Replication

DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..

Cell Respiration
Cell Respiration

Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..

Cells in different stages of meiosis
Meiosis – The Genetics of Reproduction

Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..

Related Articles...

No related articles found

See all Related Topics