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In biology, matrix (pl.: matrices) is the material (or tissue) in between a eukaryotic organism's cells. The structure of connective tissues is an extracellular matrix. Fingernails and toenails grow from matrices. It is found in various connective tissues. It serves as a jelly-like structure instead of cytoplasm in connective tissue.
The animal extracellular matrix includes the interstitial matrix and the basement membrane. [7] Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. [8]
Bone matrix is 90 to 95% composed of elastic collagen fibers, also known as ossein, [5] and the remainder is ground substance. [6] The elasticity of collagen improves fracture resistance. [ 7 ] The matrix is hardened by the binding of inorganic mineral salt, calcium phosphate , in a chemical arrangement known as bone mineral , a form of calcium ...
Bone remodeling is a process which maintains bone strength and ion homeostasis by replacing discrete parts of old bone with newly synthesized packets of proteinaceous matrix. [5] Bone is resorbed by osteoclasts, and is deposited by osteoblasts in a process called ossification. [6] Osteocyte activity plays a key role in this process. Conditions ...
The germinal matrix is the source of both neurons and glial cells and is most active between 8 and 28 weeks gestation. It is a fragile portion of the brain that may be damaged leading to a germinal matrix hemorrhage (grade 1 intraventricular hemorrhage). Location/anatomy: The germinal matrix is next to the lateral ventricles (the "inside" of ...
Together with the mesangial matrix, they form the vascular pole of the renal corpuscle. [1] The mesangial cell population accounts for approximately 30-40% of the total cells in the glomerulus. [ 2 ] Mesangial cells can be categorized as either extraglomerular mesangial cells or intraglomerular mesangial cells , based on their relative location ...
Goss was the esteemed editor of the 25th edition of the seminal classic Gray’s Anatomy. Internationally lauded as the authority on all things anatomical, Gray’s Anatomy had been considered essential for any would-be physician to own since it was first published in London in 1858. It was written by Dr. Henry Gray and illustrated by Henry ...
Matrix (mathematics), a rectangular array of numbers, symbols or expressions Matrix (logic), part of a formula in prenex normal form Matrix (biology), the material in between a eukaryotic organism's cells