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Microtubule and tubulin metrics [ 1] Microtubules are polymers of tubulin that form part of the cytoskeleton and provide structure and shape to eukaryotic cells. Microtubules can be as long as 50 micrometres, as wide as 23 to 27 nm [ 2] and have an inner diameter between 11 and 15 nm. [ 3] They are formed by the polymerization of a dimer of two ...
The cytoskeleton consists of (a) microtubules, (b) microfilaments, and (c) intermediate filaments. [ 1] The cytoskeleton is a complex, dynamic network of interlinking protein filaments present in the cytoplasm of all cells, including those of bacteria and archaea. [ 2] In eukaryotes, it extends from the cell nucleus to the cell membrane and is ...
Each fallopian tube leaves the uterus at an opening at the uterine horns known as the proximal tubal opening or proximal ostium. [9] The tubes have an average length of 10–14 centimeters (3.9–5.5 in) [4] that includes the intramural part of the tube. The tubes extend to near the ovaries where they open into the abdomen at the distal tubal ...
In amphibians and lungfishes, the oviduct is a simple ciliated tube, lined with mucus -secreting glands that produce the jelly that surrounds the ovum. In all other vertebrates, there is normally some degree of specialisation of the tube, depending on the type of eggs produced. In cartilaginous fishes, the middle portion of the tube develops as ...
The system transports water and soluble mineral nutrients from the roots throughout the plant. It is also used to replace water lost during transpiration and photosynthesis. Xylem sap consists mainly of water and inorganic ions, although it can also contain a number of organic chemicals as well.
Tube (structure) John Hancock Center in Chicago, designed in 1965 and finished in 1969, is an example of the trussed tube structural design. In structural engineering, the tube is a system where, to resist lateral loads (wind, seismic, impact), a building is designed to act like a hollow cylinder, cantilevered perpendicular to the ground.
MeSH. D012121. OPS-301 code. 8-71. [ edit on Wikidata] The nasal cannula (NC) is a device used to deliver supplemental oxygen or increased airflow to a patient or person in need of respiratory help. This device consists of a lightweight tube which on one end splits into two prongs which are placed in the nostrils curving toward the sinuses ...
An endoscope is an inspection instrument composed of image sensor, optical lens, light source and mechanical device, which is used to look deep into the body by way of openings such as the mouth or anus. A typical endoscope applies several modern technologies including optics, ergonomics, precision mechanics, electronics, and software engineering.
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