MICROANATOMY

Detailed explanation-1: -Extracellular matrix proteins bind to integrin-cell surface receptors to trigger signaling pathways involved in cell spreading, cytoskeletal rearrangement, cell proliferation, survival and migration.

Detailed explanation-2: -Extracellular matrix of animal cells A major component of the extracellular matrix is the protein collagen. Collagen proteins are modified with carbohydrates, and once they’re released from the cell, they assemble into long fibers called collagen fibrils 1start superscript, 1, end superscript.

Detailed explanation-3: -Although animal cells are not surrounded by cell walls, many of the cells in tissues of multicellular organisms are embedded in an extracellular matrix consisting of secreted proteins and polysaccharides. The extracellular matrix fills the spaces between cells and binds cells and tissues together.