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  2. List of human cell types - Wikipedia

    en.wikipedia.org/wiki/List_of_human_cell_types

    On 2021, Stephen Quake guessed that the upper limit of the number of human cell types would be around 6000, based on a reasoning that "if biologists had discovered only 5% of cell types in the human body, then the upper limit of cell types to discover is somewhere around 6000 (i.e., 300/0.05)." [10] Other different efforts have used different ...

  3. Muscle cell - Wikipedia

    en.wikipedia.org/wiki/Muscle_cell

    A muscle cell, also known as a myocyte, is a mature contractile cell in the muscle of an animal. [1] In humans and other vertebrates there are three types: skeletal, smooth, and cardiac (cardiomyocytes). [2] A skeletal muscle cell is long and threadlike with many nuclei and is called a muscle fiber. [3]

  4. Cell cortex - Wikipedia

    en.wikipedia.org/wiki/Cell_cortex

    [16] [17] Genetic studies have shown that the cell cortex in mitosis is regulated by diverse genes such as Rhoa, [18] WDR1, [19] ERM proteins, [20] Ect2, [21] Pbl, Cdc42, aPKC, Par6, [22] DJ-1 and FAM134A. [23] In cytokinesis the cell cortex plays a central role by producing a myosin-rich contractile ring to constrict the dividing cell into two ...

  5. Mural cell - Wikipedia

    en.wikipedia.org/wiki/Mural_cell

    Mural cells were described for the first time in the late 19th century as contractile cells lining up around the endothelium. In reality, it was a variety of cells that had been observed and bundled up under the common name of Rouget cells. Later studies brought controversy about their contractility, and this remains an elusive point today. [4]

  6. Sarcoplasm - Wikipedia

    en.wikipedia.org/wiki/Sarcoplasm

    Sarcoplasm is the cytoplasm of a muscle cell.It is comparable to the cytoplasm of other cells, but it contains unusually large amounts of glycogen (a polymer of glucose), myoglobin, a red-colored protein necessary for binding oxygen molecules that diffuse into muscle fibers, and mitochondria.

  7. Lateral force transmission in skeletal muscle - Wikipedia

    en.wikipedia.org/wiki/Lateral_Force_Transmission...

    Contractile forces are transmitted laterally within intramuscular connective tissue to the epimysium and then to the tendon. Due to the nature of skeletal muscle, direct measurements are not possible, but many indirect studies and analyses have shown that the ECM is an important part of force transmission during muscle contraction.

  8. Basal electrical rhythm - Wikipedia

    en.wikipedia.org/wiki/Basal_electrical_rhythm

    The interstitial cells of Cajal are specialized pacemaker cells [3] located in the wall of the stomach, small intestine, and large intestine. [1] These cells are connected to the smooth muscle via gap junctions and the myenteric plexus. The cell membranes of the pacemaker cells undergo a rhythmic depolarization and repolarization from -65mV to ...

  9. Actin, alpha skeletal muscle - Wikipedia

    en.wikipedia.org/wiki/Actin,_alpha_skeletal_muscle

    11459 Ensembl ENSG00000143632 ENSMUSG00000031972 UniProt P68133 P68134 RefSeq (mRNA) NM_001100 NM_001272041 NM_009606 RefSeq (protein) NP_001091 NP_001258970 NP_033736 Location (UCSC) Chr 1: 229.43 – 229.43 Mb Chr 8: 124.62 – 124.62 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Actin, alpha skeletal muscle is a protein that in humans is encoded by the ACTA1 gene. Actin alpha 1 ...