multicellular epithelium |
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| navigate by keyword : anatomy cell ciliated columnar digestion digestive epithelial epithelium health healthy histology human illustration intestinal intestine layer light medical medicine micrograph microscope microscopic microscopy microvilli mucosa muscle pancreas respiratory science section skin small squamous stratified stratum structure system tissue villi vision |
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| In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells.[1] Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM. |
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