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File:Diagram human cell nucleus.svg. Size of this PNG preview of this SVG file: 462 × 378 pixels. Other resolutions: 293 × 240 pixels | 587 × 480 pixels | 939 × 768 pixels | 1,252 × 1,024 pixels | 2,503 × 2,048 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Centrosome. Cell membrane. The cell nucleus (from Latin nucleus or nuculeus 'kernel, seed'; pl.: nuclei) is a membrane-bound organelle found in eukaryotic cells. Eukaryotic cells usually have a single nucleus, but a few cell types, such as mammalian red blood cells, have no nuclei, and a few others including osteoclasts have many.
The cell is the basic structural and functional unit of all forms of life. Every cell consists of cytoplasm enclosed within a membrane; many cells contain organelles, each with a specific function. The term comes from the Latin word cellula meaning 'small room'. Most cells are only visible under a microscope.
The nuclear pore complex (NPC) is a crucial cellular structure with a diameter of approximately 120 nanometers in vertebrates. Its channel varies from 5.2 nanometers in humans [ 13 ] to 10.7 nm in the frog Xenopus laevis, with a depth of roughly 45 nm. [ 14 ] Additionally, mRNA, being single-stranded, has a thickness ranging from 0.5 to 1 nm.
An extensive listing of human cell types was published by Vickaryous and Hall in 2006, collecting 411 different types of human cells (with 145 types of neuron among those). [11] The Human Cell Atlas project, which started in 2016, had as one of its goals to "catalog all cell types (for example, immune cells or brain cells) and sub-types in the ...
English: Complete neuron cell diagram. Neurons (also known as neurones and nerve cells) are electrically excitable cells in the nervous system that process and transmit information. In vertebrate animals, neurons are the core components of the brain, spinal cord and peripheral nerves. Own work. Image renamed from Image:Complete neuron cell ...
The nucleolus (/ njuːˈkliːələs, ˌnjuːkliˈoʊləs /; pl.: nucleoli /- laɪ /) is the largest structure in the nucleus of eukaryotic cells. [1] It is best known as the site of ribosome biogenesis. The nucleolus also participates in the formation of signal recognition particles and plays a role in the cell's response to stress. [2]
Biological illustration. Illustration from the book Histoire naturelle by Louis Renard, published in Amsterdam in 1754. Biological illustration is the use of technical illustration to visually communicate the structure and specific details of biological subjects of study. This can be used to demonstrate anatomy, explain biological functions or ...