Definitions for cytoskeleton
ˌsaɪ təˈskɛl ɪ tncy·toskele·ton

Princeton's WordNetRate this definition:0.0 / 0 votes

1. cytoskeletonnoun

   a microscopic network of actin filaments and microtubules in the cytoplasm of many living cells that gives the cell shape and coherence

GCIDERate this definition:2.0 / 1 vote

1. cytoskeletonnoun

   An arrangement of microtubules, microfilaments, and larger filaments within a cell serving to provide structural support of components of the cell, and to transport components from one part of the cell to another; the filaments are composed of protein and form a latticelike arrangement which may change rapidly with time.

WiktionaryRate this definition:0.0 / 0 votes

1. cytoskeletonnoun

   A cellular structure like a skeleton, contained within the cytoplasm.

WikipediaRate this definition:0.0 / 0 votes

1. Cytoskeleton

   The cytoskeleton is a complex, dynamic network of interlinking protein filaments present in the cytoplasm of all cells, including those of bacteria and archaea. In eukaryotes, it extends from the cell nucleus to the cell membrane and is composed of similar proteins in the various organisms. It is composed of three main components, microfilaments, intermediate filaments and microtubules, and these are all capable of rapid growth or disassembly dependent on the cell's requirements.A multitude of functions can be performed by the cytoskeleton. Its primary function is to give the cell its shape and mechanical resistance to deformation, and through association with extracellular connective tissue and other cells it stabilizes entire tissues. The cytoskeleton can also contract, thereby deforming the cell and the cell's environment and allowing cells to migrate. Moreover, it is involved in many cell signaling pathways and in the uptake of extracellular material (endocytosis), the segregation of chromosomes during cellular division, the cytokinesis stage of cell division, as scaffolding to organize the contents of the cell in space and in intracellular transport (for example, the movement of vesicles and organelles within the cell) and can be a template for the construction of a cell wall. Furthermore, it can form specialized structures, such as flagella, cilia, lamellipodia and podosomes. The structure, function and dynamic behavior of the cytoskeleton can be very different, depending on organism and cell type. Even within one cell, the cytoskeleton can change through association with other proteins and the previous history of the network.A large-scale example of an action performed by the cytoskeleton is muscle contraction. This is carried out by groups of highly specialized cells working together. A main component in the cytoskeleton that helps show the true function of this muscle contraction is the microfilament. Microfilaments are composed of the most abundant cellular protein known as actin. During contraction of a muscle, within each muscle cell, myosin molecular motors collectively exert forces on parallel actin filaments. Muscle contraction starts from nerve impulses which then causes increased amounts of calcium to be released from the sarcoplasmic reticulum. Increases in calcium in the cytosol allows muscle contraction to begin with the help of two proteins, tropomyosin and troponin. Tropomyosin inhibits the interaction between actin and myosin, while troponin senses the increase in calcium and releases the inhibition. This action contracts the muscle cell, and through the synchronous process in many muscle cells, the entire muscle.

ChatGPTRate this definition:0.0 / 0 votes

1. cytoskeleton

   The cytoskeleton is a complex network of interlinking protein filaments and tubules that extend throughout the cytoplasm of cells. It provides structural support, maintains cell shape, enables cell movement, and plays crucial roles in cell division, intracellular transport, and signal transduction. The cytoskeleton is composed of three main types of fibers: microtubules, microfilaments, and intermediate filaments.

WikidataRate this definition:0.0 / 0 votes

1. Cytoskeleton

   The cytoskeleton is a cellular scaffolding or skeleton contained within a cell's cytoplasm. The cytoskeleton is present in all cells; it was once thought to be unique to eukaryotes, but recent research has identified the prokaryotic cytoskeleton. It forms structures such as flagella, cilia and lamellipodia and plays important roles in both intracellular transport and cellular division. In 1903 Nikolai K Koltsov proposed that the shape of cells was determined by a network of tubules which he termed the cytoskeleton. The concept of a protein mosaic that dynamically coordinated cytoplasmic biochemistry was proposed by Rudolph Peters in 1929 while the term was first introduced by French embryologist Paul Wintrebert in 1931.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Cytoskeleton

   The network of filaments, tubules, and interconnecting filamentous bridges which give shape, structure, and organization to the cytoplasm.

Matched Categories

1. • Structure

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Numerology

1. Chaldean Numerology

   The numerical value of cytoskeleton in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of cytoskeleton in Pythagorean Numerology is: 2

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=cytoskeleton
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=cytoskeleton
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Cytoskeleton
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Cytoskeleton
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=cytoskeleton